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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.582 by root, Fri Feb 3 03:01:45 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
38		85
39	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
43		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	93	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
46		96
47	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	98
49	our $AIO_POLL_WATCHER;	99	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		135
		136	our $UPTIME; $UPTIME ||= time;
		137	our $RUNTIME = 0;
		138	our $SERVER_TICK = 0;
52	our $NOW;	139	our $NOW;
53		140
54	our %CFG;	141	our (%PLAYER, %PLAYER_LOADING); # all users
55		142	our (%MAP, %MAP_LOADING ); # all maps
56	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;
58
59	our %PLAYER; # all users
60	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	143	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		144
67	# used to convert map paths into valid unix filenames by replacing / by ∕	145	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	146	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		147
		148	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		149	our $LOADAVG; # same thing, but with alpha-smoothing
		150	our $JITTER; # average jitter
		151	our $TICK_START; # for load detecting purposes
		152
		153	our @POST_INIT;
		154
		155	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		156	our $REALLY_UNLOOP; # never set to true, please :)
		157
		158	our $WAIT_FOR_TICK = new Coro::Signal;
		159	our @WAIT_FOR_TICK_BEGIN;
		160
70	binmode STDOUT;	161	binmode STDOUT;
71	binmode STDERR;	162	binmode STDERR;
72		163
73	# read virtual server time, if available	164	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	165	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	166	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	167	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	168	$RUNTIME = <$fh> + 0.;
78	}	169	}
79		170
80	mkdir cf::localdir;	171	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	172
82	mkdir cf::localdir . "/" . cf::tmpdir;	173	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	174	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		175
86	our $EMERGENCY_POSITION;	176	our $EMERGENCY_POSITION;
87		177
		178	sub cf::map::normalise;
		179
		180	sub in_main() {
		181	$Coro::current == $Coro::main
		182	}
		183
88	#############################################################################	184	#############################################################################
89		185
		186	%REFLECT = ();
		187	for (@REFLECT) {
		188	my $reflect = JSON::XS::decode_json $_;
		189	$REFLECT{$reflect->{class}} = $reflect;
		190	}
		191
		192	# this is decidedly evil
		193	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		194
		195	#############################################################################
		196
90	=head2 GLOBAL VARIABLES	197	=head2 GLOBAL VARIABLES
91		198
92	=over 4	199	=over 4
93		200
94	=item $cf::UPTIME	201	=item $cf::UPTIME
95		202
96	The timestamp of the server start (so not actually an uptime).	203	The timestamp of the server start (so not actually an "uptime").
		204
		205	=item $cf::SERVER_TICK
		206
		207	An unsigned integer that starts at zero when the server is started and is
		208	incremented on every tick.
		209
		210	=item $cf::NOW
		211
		212	The (real) time of the last (current) server tick - updated before and
		213	after tick processing, so this is useful only as a rough "what time is it
		214	now" estimate.
		215
		216	=item $cf::TICK
		217
		218	The interval between each server tick, in seconds.
97		219
98	=item $cf::RUNTIME	220	=item $cf::RUNTIME
99		221
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	222	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	223	every server tick.
102		224
103	=item $cf::LIBDIR	225	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		226	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		227	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		228
105	The perl library directory, where extensions and cf-specific modules can	229	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	230	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		231	unique-items directory, player file directory, random maps directory and
		232	database environment.
107		233
		234	=item $cf::LOADAVG
		235
		236	The current CPU load on the server (alpha-smoothed), as a value between 0
		237	(none) and 1 (overloaded), indicating how much time is spent on processing
		238	objects per tick. Healthy values are < 0.5.
		239
108	=item $cf::NOW	240	=item $cf::LOAD
109		241
110	The time of the last (current) server tick.	242	The raw value load value from the last tick.
111
112	=item $cf::TICK
113
114	The interval between server ticks, in seconds.
115		243
116	=item %cf::CFG	244	=item %cf::CFG
117		245
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	246	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	247	from wherever your confdir points to.
120		248
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	249	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		250
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	251	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	252	returns directly I<after> the tick processing (and consequently, can only wake one thread
125	processing has been done. Call C<< ->wait >> on them to maximise the	253	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	254
		255	Note that cf::Wait_for_tick will immediately return when the server is not
		256	ticking, making it suitable for small pauses in threads that need to run
		257	when the server is paused. If that is not applicable (i.e. you I<really>
		258	want to wait, use C<$cf::WAIT_FOR_TICK>).
		259
		260	=item $cf::WAIT_FOR_TICK
		261
		262	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		263	variable contains a L<Coro::Signal> that is broadcats after every server
		264	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		265	next server tick.
		266
		267	=cut
		268
		269	sub wait_for_tick();
		270	sub wait_for_tick_begin();
		271
		272	=item @cf::INVOKE_RESULTS
		273
		274	This array contains the results of the last C<invoke ()> call. When
		275	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		276	that call.
		277
		278	=item %cf::REFLECT
		279
		280	Contains, for each (C++) class name, a hash reference with information
		281	about object members (methods, scalars, arrays and flags) and other
		282	metadata, which is useful for introspection.
127		283
128	=back	284	=back
129		285
130	=cut	286	=cut
131		287
132	BEGIN {	288	sub error(@) { LOG llevError, join "", @_ }
133	*CORE::GLOBAL::warn = sub {	289	sub warn (@) { LOG llevWarn , join "", @_ }
		290	sub info (@) { LOG llevInfo , join "", @_ }
		291	sub debug(@) { LOG llevDebug, join "", @_ }
		292	sub trace(@) { LOG llevTrace, join "", @_ }
		293
		294	$Coro::State::WARNHOOK = sub {
134	my $msg = join "", @_;	295	my $msg = join "", @_;
135	utf8::encode $msg;
136		296
137	$msg .= "\n"	297	$msg .= "\n"
138	unless $msg =~ /\n$/;	298	unless $msg =~ /\n$/;
139		299
		300	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		301
140	LOG llevError, $msg;	302	LOG llevWarn, $msg;
141	};	303	};
142	}	304
		305	$Coro::State::DIEHOOK = sub {
		306	return unless $^S eq 0; # "eq", not "=="
		307
		308	error Carp::longmess $_[0];
		309
		310	if (in_main) {#d#
		311	error "DIEHOOK called in main context, Coro bug?\n";#d#
		312	return;#d#
		313	}#d#
		314
		315	# kill coroutine otherwise
		316	Coro::terminate
		317	};
143		318
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	319	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	320	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	321	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	322	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	323	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		324	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	325	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		326
151	# we bless all objects into (empty) derived classes to force a method lookup	327	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	328	# within the Safe compartment.
153	for my $pkg (qw(	329	for my $pkg (qw(
154	cf::global cf::attachable	330	cf::global cf::attachable
155	cf::object cf::object::player	331	cf::object cf::object::player
156	cf::client cf::player	332	cf::client cf::player
157	cf::arch cf::living	333	cf::arch cf::living
		334	cf::map cf::mapspace
158	cf::map cf::party cf::region	335	cf::party cf::region
159	)) {	336	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	337	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	338	}
163		339
164	$Event::DIED = sub {	340	$EV::DIED = sub {
165	warn "error in event callback: @_";	341	Carp::cluck "error in event callback: @_";
166	};	342	};
		343
		344	#############################################################################
		345
		346	sub fork_call(&@);
		347	sub get_slot($;$$);
		348
		349	#############################################################################
167		350
168	=head2 UTILITY FUNCTIONS	351	=head2 UTILITY FUNCTIONS
169		352
170	=over 4	353	=over 4
171		354
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	373	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	374	$d
192	} || "[unable to dump $_[0]: '$@']";	375	} || "[unable to dump $_[0]: '$@']";
193	}	376	}
194		377
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	378	=item $scalar = cf::load_file $path
196		379
		380	Loads the given file from path and returns its contents. Croaks on error
		381	and can block.
		382
		383	=cut
		384
		385	sub load_file($) {
		386	0 <= aio_load $_[0], my $data
		387	or Carp::croak "$_[0]: $!";
		388
		389	$data
		390	}
		391
		392	=item $success = cf::replace_file $path, $data, $sync
		393
		394	Atomically replaces the file at the given $path with new $data, and
		395	optionally $sync the data to disk before replacing the file.
		396
		397	=cut
		398
		399	sub replace_file($$;$) {
		400	my ($path, $data, $sync) = @_;
		401
		402	my $lock = cf::lock_acquire ("replace_file:$path");
		403
		404	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		405	or return;
		406
		407	$data = $data->() if ref $data;
		408
		409	length $data == aio_write $fh, 0, (length $data), $data, 0
		410	or return;
		411
		412	!$sync
		413	or !aio_fsync $fh
		414	or return;
		415
		416	aio_close $fh
		417	and return;
		418
		419	aio_rename "$path~", $path
		420	and return;
		421
		422	if ($sync) {
		423	$path =~ s%/[^/]*$%%;
		424	aio_pathsync $path;
		425	}
		426
		427	1
		428	}
		429
197	=item $ref = cf::from_json $json	430	=item $ref = cf::decode_json $json
198		431
199	Converts a JSON string into the corresponding perl data structure.	432	Converts a JSON string into the corresponding perl data structure.
200		433
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	434	=item $json = cf::encode_json $ref
209		435
210	Converts a perl data structure into its JSON representation.	436	Converts a perl data structure into its JSON representation.
211		437
212	=cut	438	=cut
213		439
214	sub to_json($) {	440	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	441
216	JSON::Syck::Dump $_[0]	442	sub encode_json($) { $json_coder->encode ($_[0]) }
		443	sub decode_json($) { $json_coder->decode ($_[0]) }
		444
		445	=item $ref = cf::decode_storable $scalar
		446
		447	Same as Coro::Storable::thaw, so blocks.
		448
		449	=cut
		450
		451	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		452
		453	=item $ref = cf::decode_yaml $scalar
		454
		455	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		456
		457	=cut
		458
		459	sub decode_yaml($) {
		460	fork_call { YAML::XS::Load $_[0] } @_
		461	}
		462
		463	=item $scalar = cf::unlzf $scalar
		464
		465	Same as Compress::LZF::compress, but takes server ticks into account, so
		466	blocks.
		467
		468	=cut
		469
		470	sub unlzf($) {
		471	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		472	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		473	Compress::LZF::decompress $_[0]
		474	}
		475
		476	=item cf::post_init { BLOCK }
		477
		478	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		479	but I<before> the server starts ticking again.
		480
		481	The codeblock will have a single boolean argument to indicate whether this
		482	is a reload or not.
		483
		484	=cut
		485
		486	sub post_init(&) {
		487	push @POST_INIT, shift;
		488	}
		489
		490	sub _post_init {
		491	trace "running post_init jobs";
		492
		493	# run them in parallel...
		494
		495	my @join;
		496
		497	while () {
		498	push @join, map &Coro::async ($_, 0), @POST_INIT;
		499	@POST_INIT = ();
		500
		501	@join or last;
		502
		503	(pop @join)->join;
		504	}
217	}	505	}
218		506
219	=item cf::lock_wait $string	507	=item cf::lock_wait $string
220		508
221	Wait until the given lock is available. See cf::lock_acquire.	509	Wait until the given lock is available. See cf::lock_acquire.
222		510
223	=item my $lock = cf::lock_acquire $string	511	=item my $lock = cf::lock_acquire $string
224		512
225	Wait until the given lock is available and then acquires it and returns	513	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	514	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	515	for example when the coroutine gets canceled), the lock is automatically
228	returned.	516	returned.
229		517
		518	Locks are *not* recursive, locking from the same coro twice results in a
		519	deadlocked coro.
		520
230	Lock names should begin with a unique identifier (for example, cf::map::find	521	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	522	uses map_find and cf::map::load uses map_load).
232		523
233	=cut	524	=item $locked = cf::lock_active $string
234		525
235	our %LOCK;	526	Return true if the lock is currently active, i.e. somebody has locked it.
		527
		528	=cut
		529
		530	our $LOCKS = new Coro::SemaphoreSet;
236		531
237	sub lock_wait($) {	532	sub lock_wait($) {
238	my ($key) = @_;	533	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	534	}
246		535
247	sub lock_acquire($) {	536	sub lock_acquire($) {
248	my ($key) = @_;	537	$LOCKS->guard ($_[0])
		538	}
249		539
250	# wait, to be sure we are not locked	540	sub lock_active($) {
251	lock_wait $key;	541	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	542	}
260		543
261	sub freeze_mainloop {	544	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	545	tick_inhibit_inc;
263		546
264	my $guard = Coro::guard {	547	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	548	}
266	$WRITE_RUNTIME_WATCHER->start;	549
		550	=item cf::periodic $interval, $cb
		551
		552	Like EV::periodic, but randomly selects a starting point so that the actions
		553	get spread over time.
		554
		555	=cut
		556
		557	sub periodic($$) {
		558	my ($interval, $cb) = @_;
		559
		560	my $start = rand List::Util::min 180, $interval;
		561
		562	EV::periodic $start, $interval, 0, $cb
		563	}
		564
		565	=item cf::get_slot $time[, $priority[, $name]]
		566
		567	Allocate $time seconds of blocking CPU time at priority C<$priority>
		568	(default: 0): This call blocks and returns only when you have at least
		569	C<$time> seconds of cpu time till the next tick. The slot is only valid
		570	till the next cede.
		571
		572	Background jobs should use a priority les than zero, interactive jobs
		573	should use 100 or more.
		574
		575	The optional C<$name> can be used to identify the job to run. It might be
		576	used for statistical purposes and should identify the same time-class.
		577
		578	Useful for short background jobs.
		579
		580	=cut
		581
		582	our @SLOT_QUEUE;
		583	our $SLOT_QUEUE;
		584	our $SLOT_DECAY = 0.9;
		585
		586	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		587	$SLOT_QUEUE = Coro::async {
		588	$Coro::current->desc ("timeslot manager");
		589
		590	my $signal = new Coro::Signal;
		591	my $busy;
		592
		593	while () {
		594	next_job:
		595
		596	my $avail = cf::till_tick;
		597
		598	for (0 .. $#SLOT_QUEUE) {
		599	if ($SLOT_QUEUE[$_][0] <= $avail) {
		600	$busy = 0;
		601	my $job = splice @SLOT_QUEUE, $_, 1, ();
		602	$job->[2]->send;
		603	Coro::cede;
		604	goto next_job;
		605	} else {
		606	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		607	}
		608	}
		609
		610	if (@SLOT_QUEUE) {
		611	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		612	$WAIT_FOR_TICK->wait;
		613	} else {
		614	$busy = 0;
		615	Coro::schedule;
		616	}
267	};	617	}
268	$WRITE_RUNTIME_WATCHER->stop;	618	};
269	$TICK_WATCHER->stop;	619
270	$guard	620	sub get_slot($;$$) {
		621	return if tick_inhibit || $Coro::current == $Coro::main;
		622
		623	my ($time, $pri, $name) = @_;
		624
		625	$time = clamp $time, 0.01, $TICK * .6;
		626
		627	my $sig = new Coro::Signal;
		628
		629	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		630	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		631	$SLOT_QUEUE->ready;
		632	$sig->wait;
271	}	633	}
272		634
273	=item cf::async { BLOCK }	635	=item cf::async { BLOCK }
274		636
275	Currently the same as Coro::async_pool, meaning you cannot use	637	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		642
281	BEGIN { *async = \&Coro::async_pool }	643	BEGIN { *async = \&Coro::async_pool }
282		644
283	=item cf::sync_job { BLOCK }	645	=item cf::sync_job { BLOCK }
284		646
285	The design of crossfire+ requires that the main coro ($Coro::main) is	647	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	648	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	649	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		650	acceptable.
288		651
289	If it must be done, put the blocking parts into C<sync_job>. This will run	652	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	653	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	654	server will be frozen during this time, so the block should either finish
292	fast or be very important.	655	fast or be very important.
…		…
294	=cut	657	=cut
295		658
296	sub sync_job(&) {	659	sub sync_job(&) {
297	my ($job) = @_;	660	my ($job) = @_;
298		661
299	if ($Coro::current == $Coro::main) {	662	if (in_main) {
		663	my $time = AE::time;
		664
300	# this is the main coro, too bad, we have to block	665	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	666	# till the operation succeeds, freezing the server :/
302		667
303	# TODO: use suspend/resume instead	668	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	669
305	my $freeze_guard = freeze_mainloop;	670	my $freeze_guard = freeze_mainloop;
306		671
307	my $busy = 1;	672	my $busy = 1;
308	my @res;	673	my @res;
309		674
310	(async {	675	(async {
		676	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	677	@res = eval { $job->() };
312	warn $@ if $@;	678	error $@ if $@;
313	undef $busy;	679	undef $busy;
314	})->prio (Coro::PRIO_MAX);	680	})->prio (Coro::PRIO_MAX);
315		681
316	while ($busy) {	682	while ($busy) {
317	Coro::cede or Event::one_event;	683	if (Coro::nready) {
		684	Coro::cede_notself;
		685	} else {
		686	EV::loop EV::LOOP_ONESHOT;
318	}	687	}
		688	}
		689
		690	my $time = AE::time - $time;
		691
		692	$TICK_START += $time; # do not account sync jobs to server load
319		693
320	wantarray ? @res : $res[0]	694	wantarray ? @res : $res[0]
321	} else {	695	} else {
322	# we are in another coroutine, how wonderful, everything just works	696	# we are in another coroutine, how wonderful, everything just works
323		697
…		…
343	$EXT_CORO{$coro+0} = $coro;	717	$EXT_CORO{$coro+0} = $coro;
344		718
345	$coro	719	$coro
346	}	720	}
347		721
348	sub write_runtime {	722	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		723
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	724	Executes the given code block with the given arguments in a seperate
352	or return;	725	process, returning the results. Everything must be serialisable with
		726	Coro::Storable. May, of course, block. Note that the executed sub may
		727	never block itself or use any form of event handling.
353		728
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	729	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		730
358	aio_fsync $fh	731	sub post_fork {
359	and return;	732	reset_signals;
		733	}
360		734
361	close $fh	735	sub fork_call(&@) {
362	or return;	736	my ($cb, @args) = @_;
363		737
364	aio_rename "$runtime~", $runtime	738	# we seemingly have to make a local copy of the whole thing,
365	and return;	739	# otherwise perl prematurely frees the stuff :/
		740	# TODO: investigate and fix (likely this will be rather laborious)
366		741
		742	my @res = Coro::Util::fork_eval {
		743	cf::post_fork;
		744	&$cb
		745	} @args;
		746
		747	wantarray ? @res : $res[-1]
		748	}
		749
		750	sub objinfo {
367	1	751	(
		752	"counter value" => cf::object::object_count,
		753	"objects created" => cf::object::create_count,
		754	"objects destroyed" => cf::object::destroy_count,
		755	"freelist size" => cf::object::free_count,
		756	"allocated objects" => cf::object::objects_size,
		757	"active objects" => cf::object::actives_size,
		758	)
		759	}
		760
		761	=item $coin = coin_from_name $name
		762
		763	=cut
		764
		765	our %coin_alias = (
		766	"silver" => "silvercoin",
		767	"silvercoin" => "silvercoin",
		768	"silvercoins" => "silvercoin",
		769	"gold" => "goldcoin",
		770	"goldcoin" => "goldcoin",
		771	"goldcoins" => "goldcoin",
		772	"platinum" => "platinacoin",
		773	"platinumcoin" => "platinacoin",
		774	"platinumcoins" => "platinacoin",
		775	"platina" => "platinacoin",
		776	"platinacoin" => "platinacoin",
		777	"platinacoins" => "platinacoin",
		778	"royalty" => "royalty",
		779	"royalties" => "royalty",
		780	);
		781
		782	sub coin_from_name($) {
		783	$coin_alias{$_[0]}
		784	? cf::arch::find $coin_alias{$_[0]}
		785	: undef
		786	}
		787
		788	=item $value = cf::db_get $family => $key
		789
		790	Returns a single value from the environment database.
		791
		792	=item cf::db_put $family => $key => $value
		793
		794	Stores the given C<$value> in the family. It can currently store binary
		795	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		796
		797	=item $db = cf::db_table "name"
		798
		799	Create and/or open a new database table. The string must not be "db" and must be unique
		800	within each server.
		801
		802	=cut
		803
		804	sub db_table($) {
		805	cf::error "db_get called from main context"
		806	if $Coro::current == $Coro::main;
		807
		808	my ($name) = @_;
		809	my $db = BDB::db_create $DB_ENV;
		810
		811	eval {
		812	$db->set_flags (BDB::CHKSUM);
		813
		814	utf8::encode $name;
		815	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		816	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		817	cf::cleanup "db_open(db): $!" if $!;
		818	};
		819	cf::cleanup "db_open(db): $@" if $@;
		820
		821	$db
		822	}
		823
		824	our $DB;
		825
		826	sub db_init {
		827	$DB ||= db_table "db";
		828	}
		829
		830	sub db_get($$) {
		831	my $key = "$_[0]/$_[1]";
		832
		833	cf::error "db_get called from main context"
		834	if $Coro::current == $Coro::main;
		835
		836	BDB::db_get $DB, undef, $key, my $data;
		837
		838	$! ? ()
		839	: $data
		840	}
		841
		842	sub db_put($$$) {
		843	BDB::dbreq_pri 4;
		844	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		845	}
		846
		847	=item cf::cache $id => [$paths...], $processversion => $process
		848
		849	Generic caching function that returns the value of the resource $id,
		850	caching and regenerating as required.
		851
		852	This function can block.
		853
		854	=cut
		855
		856	sub cache {
		857	my ($id, $src, $processversion, $process) = @_;
		858
		859	my $meta =
		860	join "\x00",
		861	$processversion,
		862	map {
		863	aio_stat $_
		864	and Carp::croak "$_: $!";
		865
		866	($_, (stat _)[7,9])
		867	} @$src;
		868
		869	my $dbmeta = db_get cache => "$id/meta";
		870	if ($dbmeta ne $meta) {
		871	# changed, we may need to process
		872
		873	my @data;
		874	my $md5;
		875
		876	for (0 .. $#$src) {
		877	$data[$_] = load_file $src->[$_];
		878	}
		879
		880	# if processing is expensive, check
		881	# checksum first
		882	if (1) {
		883	$md5 =
		884	join "\x00",
		885	$processversion,
		886	map {
		887	cf::cede_to_tick;
		888	($src->[$_], Digest::MD5::md5_hex $data[$_])
		889	} 0.. $#$src;
		890
		891
		892	my $dbmd5 = db_get cache => "$id/md5";
		893	if ($dbmd5 eq $md5) {
		894	db_put cache => "$id/meta", $meta;
		895
		896	return db_get cache => "$id/data";
		897	}
		898	}
		899
		900	my $t1 = Time::HiRes::time;
		901	my $data = $process->(\@data);
		902	my $t2 = Time::HiRes::time;
		903
		904	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		905
		906	db_put cache => "$id/data", $data;
		907	db_put cache => "$id/md5" , $md5;
		908	db_put cache => "$id/meta", $meta;
		909
		910	return $data;
		911	}
		912
		913	db_get cache => "$id/data"
		914	}
		915
		916	=item cf::datalog type => key => value, ...
		917
		918	Log a datalog packet of the given type with the given key-value pairs.
		919
		920	=cut
		921
		922	sub datalog($@) {
		923	my ($type, %kv) = @_;
		924	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	925	}
369		926
370	=back	927	=back
371		928
372	=cut	929	=cut
373		930
374	#############################################################################	931	#############################################################################
375		932
376	=head2 ATTACHABLE OBJECTS	933	=head2 ATTACHABLE OBJECTS
377		934
378	Many objects in crossfire are so-called attachable objects. That means you can	935	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	936	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	937	to it. All such attachable objects support the following methods.
381		938
382	In the following description, CLASS can be any of C<global>, C<object>	939	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	940	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	941	Deliantra).
385		942
386	=over 4	943	=over 4
387		944
388	=item $attachable->attach ($attachment, key => $value...)	945	=item $attachable->attach ($attachment, key => $value...)
389		946
…		…
433	=item cf::CLASS::attachment $name, ...	990	=item cf::CLASS::attachment $name, ...
434		991
435	Register an attachment by C<$name> through which attachable objects of the	992	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	993	given CLASS can refer to this attachment.
437		994
438	Some classes such as crossfire maps and objects can specify attachments	995	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	996	that are attached at load/instantiate time, thus the need for a name.
440		997
441	These calls expect any number of the following handler/hook descriptions:	998	These calls expect any number of the following handler/hook descriptions:
442		999
443	=over 4	1000	=over 4
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	1060	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	1061	our @CB_MAP = ();
505		1062
506	my %attachment;	1063	my %attachment;
507		1064
		1065	sub cf::attachable::thawer_merge {
		1066	# simply override everything except _meta
		1067	local $_[0]{_meta};
		1068	%{$_[0]} = %{$_[1]};
		1069	}
		1070
508	sub _attach_cb($$$$) {	1071	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	1072	my ($registry, $event, $prio, $cb) = @_;
510		1073
511	use sort 'stable';	1074	use sort 'stable';
512		1075
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	1109	$registry = $CB_TYPE[$object_type] ||= [];
547		1110
548	} elsif ($type eq "subtype") {	1111	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	1112	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	1113	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1114	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		1115
553	} elsif ($type eq "package") {	1116	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	1117	my $pkg = shift @arg;
555		1118
556	while (my ($name, $id) = each %cb_id) {	1119	while (my ($name, $id) = each %cb_id) {
…		…
561		1124
562	} elsif (exists $cb_id{$type}) {	1125	} elsif (exists $cb_id{$type}) {
563	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1126	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
564		1127
565	} elsif (ref $type) {	1128	} elsif (ref $type) {
566	warn "attaching objects not supported, ignoring.\n";	1129	error "attaching objects not supported, ignoring.\n";
567		1130
568	} else {	1131	} else {
569	shift @arg;	1132	shift @arg;
570	warn "attach argument '$type' not supported, ignoring.\n";	1133	error "attach argument '$type' not supported, ignoring.\n";
571	}	1134	}
572	}	1135	}
573	}	1136	}
574		1137
575	sub _object_attach {	1138	sub _object_attach {
…		…
585	_attach $registry, $klass, @attach;	1148	_attach $registry, $klass, @attach;
586	}	1149	}
587		1150
588	$obj->{$name} = \%arg;	1151	$obj->{$name} = \%arg;
589	} else {	1152	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	1153	info "object uses attachment '$name' which is not available, postponing.\n";
591	}	1154	}
592		1155
593	$obj->{_attachment}{$name} = undef;	1156	$obj->{_attachment}{$name} = undef;
594	}	1157	}
595		1158
…		…
597	if (ref $_[0]) {	1160	if (ref $_[0]) {
598	_object_attach @_;	1161	_object_attach @_;
599	} else {	1162	} else {
600	_attach shift->_attach_registry, @_;	1163	_attach shift->_attach_registry, @_;
601	}	1164	}
		1165	_recalc_want;
602	};	1166	};
603		1167
604	# all those should be optimised	1168	# all those should be optimised
605	sub cf::attachable::detach {	1169	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	1170	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	1173	delete $obj->{_attachment}{$name};
610	reattach ($obj);	1174	reattach ($obj);
611	} else {	1175	} else {
612	Carp::croak "cannot, currently, detach class attachments";	1176	Carp::croak "cannot, currently, detach class attachments";
613	}	1177	}
		1178	_recalc_want;
614	};	1179	};
615		1180
616	sub cf::attachable::attached {	1181	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	1182	my ($obj, $name) = @_;
618		1183
…		…
633	";	1198	";
634	die if $@;	1199	die if $@;
635	}	1200	}
636		1201
637	our $override;	1202	our $override;
638	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1203	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
639		1204
640	sub override {	1205	sub override {
641	$override = 1;	1206	$override = 1;
642	@invoke_results = ();	1207	@INVOKE_RESULTS = (@_);
643	}	1208	}
644		1209
645	sub do_invoke {	1210	sub do_invoke {
646	my $event = shift;	1211	my $event = shift;
647	my $callbacks = shift;	1212	my $callbacks = shift;
648		1213
649	@invoke_results = ();	1214	@INVOKE_RESULTS = ();
650		1215
651	local $override;	1216	local $override;
652		1217
653	for (@$callbacks) {	1218	for (@$callbacks) {
654	eval { &{$_->[1]} };	1219	eval { &{$_->[1]} };
655		1220
656	if ($@) {	1221	if ($@) {
657	warn "$@";
658	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1222	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
659	override;	1223	override;
660	}	1224	}
661		1225
662	return 1 if $override;	1226	return 1 if $override;
663	}	1227	}
664		1228
665	0	1229	0
666	}	1230	}
667		1231
668	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1232	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
669		1233
670	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
671		1235
672	Generate an object-specific event with the given arguments.	1236	Generate an object-specific event with the given arguments.
673		1237
674	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1238	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
675	removed in future versions), and there is no public API to access override	1239	removed in future versions), and there is no public API to access override
676	results (if you must, access C<@cf::invoke_results> directly).	1240	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		1241
678	=back	1242	=back
679		1243
680	=cut	1244	=cut
681		1245
682	#############################################################################	1246	#############################################################################
683	# object support	1247	# object support
		1248
		1249	sub _object_equal($$);
		1250	sub _object_equal($$) {
		1251	my ($a, $b) = @_;
		1252
		1253	return 0 unless (ref $a) eq (ref $b);
		1254
		1255	if ("HASH" eq ref $a) {
		1256	my @ka = keys %$a;
		1257	my @kb = keys %$b;
		1258
		1259	return 0 if @ka != @kb;
		1260
		1261	for (0 .. $#ka) {
		1262	return 0 unless $ka[$_] eq $kb[$_];
		1263	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1264	}
		1265
		1266	} elsif ("ARRAY" eq ref $a) {
		1267
		1268	return 0 if @$a != @$b;
		1269
		1270	for (0 .. $#$a) {
		1271	return 0 unless _object_equal $a->[$_], $b->[$_];
		1272	}
		1273
		1274	} elsif ($a ne $b) {
		1275	return 0;
		1276	}
		1277
		1278	1
		1279	}
		1280
		1281	our $SLOW_MERGES;#d#
		1282	sub _can_merge {
		1283	my ($ob1, $ob2) = @_;
		1284
		1285	++$SLOW_MERGES;#d#
		1286
		1287	# we do the slow way here
		1288	return _object_equal $ob1, $ob2
		1289	}
684		1290
685	sub reattach {	1291	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	1292	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	1293	my ($obj) = @_;
688		1294
		1295	# no longer needed after getting rid of delete_package?
689	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1296	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
690		1297
691	my $registry = $obj->registry;	1298	my $registry = $obj->registry;
692		1299
693	@$registry = ();	1300	@$registry = ();
694		1301
…		…
699	for (@$attach) {	1306	for (@$attach) {
700	my ($klass, @attach) = @$_;	1307	my ($klass, @attach) = @$_;
701	_attach $registry, $klass, @attach;	1308	_attach $registry, $klass, @attach;
702	}	1309	}
703	} else {	1310	} else {
704	warn "object uses attachment '$name' that is not available, postponing.\n";	1311	info "object uses attachment '$name' that is not available, postponing.\n";
705	}	1312	}
706	}	1313	}
707	}	1314	}
708		1315
709	cf::attachable->attach (	1316	cf::attachable->attach (
710	prio => -1000000,	1317	prio => -1000000,
711	on_instantiate => sub {	1318	on_instantiate => sub {
712	my ($obj, $data) = @_;	1319	my ($obj, $data) = @_;
713		1320
714	$data = from_json $data;	1321	$data = decode_json $data;
715		1322
716	for (@$data) {	1323	for (@$data) {
717	my ($name, $args) = @$_;	1324	my ($name, $args) = @$_;
718		1325
719	$obj->attach ($name, %{$args || {} });	1326	$obj->attach ($name, %{$args || {} });
…		…
735	sub object_freezer_save {	1342	sub object_freezer_save {
736	my ($filename, $rdata, $objs) = @_;	1343	my ($filename, $rdata, $objs) = @_;
737		1344
738	sync_job {	1345	sync_job {
739	if (length $$rdata) {	1346	if (length $$rdata) {
		1347	utf8::decode (my $decname = $filename);
740	warn sprintf "saving %s (%d,%d)\n",	1348	trace sprintf "saving %s (%d,%d)\n",
741	$filename, length $$rdata, scalar @$objs;	1349	$decname, length $$rdata, scalar @$objs
		1350	if $VERBOSE_IO;
742		1351
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1352	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	1353	aio_chmod $fh, SAVE_MODE;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1354	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1355	if ($cf::USE_FSYNC) {
		1356	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
746	aio_fsync $fh;	1357	aio_fsync $fh;
		1358	}
747	close $fh;	1359	aio_close $fh;
748		1360
749	if (@$objs) {	1361	if (@$objs) {
750	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1362	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751	chmod SAVE_MODE, $fh;	1363	aio_chmod $fh, SAVE_MODE;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	1364	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	1365	aio_write $fh, 0, (length $data), $data, 0;
		1366	if ($cf::USE_FSYNC) {
		1367	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
754	aio_fsync $fh;	1368	aio_fsync $fh;
		1369	}
755	close $fh;	1370	aio_close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	1371	aio_rename "$filename.pst~", "$filename.pst";
757	}	1372	}
758	} else {	1373	} else {
759	aio_unlink "$filename.pst";	1374	aio_unlink "$filename.pst";
760	}	1375	}
761		1376
762	aio_rename "$filename~", $filename;	1377	aio_rename "$filename~", $filename;
		1378
		1379	$filename =~ s%/[^/]+$%%;
		1380	aio_pathsync $filename if $cf::USE_FSYNC;
763	} else {	1381	} else {
764	warn "FATAL: $filename~: $!\n";	1382	error "unable to save objects: $filename~: $!\n";
765	}	1383	}
766	} else {	1384	} else {
767	aio_unlink $filename;	1385	aio_unlink $filename;
768	aio_unlink "$filename.pst";	1386	aio_unlink "$filename.pst";
769	}	1387	}
770	}	1388	};
771	}	1389	}
772		1390
773	sub object_freezer_as_string {	1391	sub object_freezer_as_string {
774	my ($rdata, $objs) = @_;	1392	my ($rdata, $objs) = @_;
775		1393
…		…
787	or return;	1405	or return;
788		1406
789	unless (aio_stat "$filename.pst") {	1407	unless (aio_stat "$filename.pst") {
790	(aio_load "$filename.pst", $av) >= 0	1408	(aio_load "$filename.pst", $av) >= 0
791	or return;	1409	or return;
		1410
792	$av = eval { (Storable::thaw $av)->{objs} };	1411	my $st = eval { Coro::Storable::thaw $av };
		1412	$av = $st->{objs};
793	}	1413	}
794		1414
		1415	utf8::decode (my $decname = $filename);
795	warn sprintf "loading %s (%d)\n",	1416	trace sprintf "loading %s (%d,%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1417	$decname, length $data, scalar @{$av || []}
		1418	if $VERBOSE_IO;
		1419
797	return ($data, $av);	1420	($data, $av)
798	}	1421	}
		1422
		1423	=head2 COMMAND CALLBACKS
		1424
		1425	=over 4
		1426
		1427	=cut
799		1428
800	#############################################################################	1429	#############################################################################
801	# command handling &c	1430	# command handling &c
802		1431
803	=item cf::register_command $name => \&callback($ob,$args);	1432	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1445	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1446	}
818		1447
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1448	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1449
821	Register a callbackf ro execution when the client sends an extcmd packet.	1450	Register a callback for execution when the client sends an (synchronous)
		1451	extcmd packet. Ext commands will be processed in the order they are
		1452	received by the server, like other user commands. The first argument is
		1453	the logged-in player. Ext commands can only be processed after a player
		1454	has logged in successfully.
822		1455
823	If the callback returns something, it is sent back as if reply was being	1456	If the callback returns something, it is sent back as if reply was being
824	called.	1457	called.
825		1458
		1459	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1460
		1461	Register a callback for execution when the client sends an (asynchronous)
		1462	exticmd packet. Exti commands are processed by the server as soon as they
		1463	are received, i.e. out of order w.r.t. other commands. The first argument
		1464	is a client socket. Exti commands can be received anytime, even before
		1465	log-in.
		1466
		1467	If the callback returns something, it is sent back as if reply was being
		1468	called.
		1469
826	=cut	1470	=cut
827		1471
828	sub register_extcmd {	1472	sub register_extcmd {
829	my ($name, $cb) = @_;	1473	my ($name, $cb) = @_;
830		1474
831	$EXTCMD{$name} = $cb;	1475	$EXTCMD{$name} = $cb;
832	}	1476	}
833		1477
		1478	sub register_exticmd {
		1479	my ($name, $cb) = @_;
		1480
		1481	$EXTICMD{$name} = $cb;
		1482	}
		1483
		1484	use File::Glob ();
		1485
834	cf::player->attach (	1486	cf::player->attach (
835	on_command => sub {	1487	on_unknown_command => sub {
836	my ($pl, $name, $params) = @_;	1488	my ($pl, $name, $params) = @_;
837		1489
838	my $cb = $COMMAND{$name}	1490	my $cb = $COMMAND{$name}
839	or return;	1491	or return;
840		1492
…		…
845	cf::override;	1497	cf::override;
846	},	1498	},
847	on_extcmd => sub {	1499	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1500	my ($pl, $buf) = @_;
849		1501
850	my $msg = eval { from_json $buf };	1502	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1503
852	if (ref $msg) {	1504	if (ref $msg) {
		1505	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1506
		1507	my @reply;
		1508
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1509	if (my $cb = $EXTCMD{$type}) {
854	if (my %reply = $cb->($pl, $msg)) {	1510	@reply = $cb->($pl, @payload);
855	$pl->ext_reply ($msg->{msgid}, %reply);
856	}
857	}	1511	}
		1512
		1513	$pl->ext_reply ($reply, @reply)
		1514	if $reply;
		1515
858	} else {	1516	} else {
859	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1517	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
860	}	1518	}
861		1519
862	cf::override;	1520	cf::override;
863	},	1521	},
864	);	1522	);
865		1523
		1524	# "readahead" all extensions
866	sub load_extension {	1525	sub cache_extensions {
867	my ($path) = @_;	1526	my $grp = IO::AIO::aio_group;
868		1527
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1528	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
870	my $base = $1;	1529	for (grep /\.ext$/, @{$_[0]}) {
871	my $pkg = $1;	1530	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}	1531	}
894	die $@;
895	}	1532	};
896		1533
897	push @EXTS, $pkg;	1534	$grp
		1535	}
		1536
		1537	sub _ext_cfg_reg($$$$) {
		1538	my ($rvar, $varname, $cfgname, $default) = @_;
		1539
		1540	$cfgname = lc $varname
		1541	unless length $cfgname;
		1542
		1543	$EXT_CFG{$cfgname} = [$rvar, $default];
		1544
		1545	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
898	}	1546	}
899		1547
900	sub load_extensions {	1548	sub load_extensions {
		1549	info "loading extensions...";
		1550
		1551	%EXT_CFG = ();
		1552
		1553	cf::sync_job {
		1554	my %todo;
		1555
901	for my $ext (<$LIBDIR/*.ext>) {	1556	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1557	next unless -r $path;
903	eval {	1558
904	load_extension $ext;	1559	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1560	my $base = $1;
		1561	my $pkg = $1;
		1562	$pkg =~ s/[^[:word:]]/_/g;
		1563	$pkg = "ext::$pkg";
		1564
		1565	open my $fh, "<:utf8", $path
		1566	or die "$path: $!";
		1567
		1568	my $source = do { local $/; <$fh> };
		1569
		1570	my %ext = (
		1571	path => $path,
		1572	base => $base,
		1573	pkg => $pkg,
		1574	);
		1575
		1576	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1577	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1578
		1579	$ext{source} =
		1580	"package $pkg; use common::sense;\n"
		1581	. "#line 1 \"$path\"\n{\n"
		1582	. $source
		1583	. "\n};\n1";
		1584
		1585	$todo{$base} = \%ext;
		1586	}
		1587
		1588	my $pass = 0;
		1589	my %done;
		1590	while (%todo) {
		1591	my $progress;
		1592
		1593	++$pass;
		1594
		1595	ext:
		1596	while (my ($k, $v) = each %todo) {
		1597	for (split /,\s*/, $v->{meta}{depends}) {
		1598	next ext
		1599	unless exists $done{$_};
		1600	}
		1601
		1602	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1603
		1604	my $source = $v->{source};
		1605
		1606	# support "CONF varname :confname = default" pseudo-statements
		1607	$source =~ s{
		1608	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1609	}{
		1610	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1611	}gmxe;
		1612
		1613	my $active = eval $source;
		1614
		1615	if (length $@) {
		1616	error "$v->{path}: $@\n";
		1617
		1618	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1619	if exists $v->{meta}{mandatory};
		1620
		1621	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1622	delete $todo{$k};
		1623	} else {
		1624	$done{$k} = delete $todo{$k};
		1625	push @EXTS, $v->{pkg};
		1626	$progress = 1;
		1627
		1628	info "$v->{base}: extension inactive.\n"
		1629	unless $active;
		1630	}
905	1	1631	}
906	} or warn "$ext not loaded: $@";	1632
		1633	unless ($progress) {
		1634	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1635
		1636	while (my ($k, $v) = each %todo) {
		1637	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1638	if exists $v->{meta}{mandatory};
		1639	}
		1640
		1641	last;
		1642	}
		1643	}
907	}	1644	};
908	}	1645	}
909		1646
910	#############################################################################	1647	#############################################################################
911		1648
		1649	=back
		1650
912	=head2 CORE EXTENSIONS	1651	=head2 CORE EXTENSIONS
913		1652
914	Functions and methods that extend core crossfire objects.	1653	Functions and methods that extend core deliantra objects.
915		1654
916	=cut	1655	=cut
917		1656
918	package cf::player;	1657	package cf::player;
919		1658
…		…
921		1660
922	=head3 cf::player	1661	=head3 cf::player
923		1662
924	=over 4	1663	=over 4
925		1664
		1665	=item cf::player::num_playing
		1666
		1667	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1668
		1669	=cut
		1670
		1671	sub num_playing {
		1672	scalar grep
		1673	$_->ob->map
		1674	&& !$_->hidden
		1675	&& !$_->ob->flag (cf::FLAG_WIZ),
		1676	cf::player::list
		1677	}
		1678
926	=item cf::player::find $login	1679	=item cf::player::find $login
927		1680
928	Returns the given player object, loading it if necessary (might block).	1681	Returns the given player object, loading it if necessary (might block).
929		1682
930	=cut	1683	=cut
931		1684
932	sub playerdir($) {	1685	sub playerdir($) {
933	cf::localdir	1686	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1687	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1688	}
939		1689
940	sub path($) {	1690	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1691	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1692
943	(playerdir $login) . "/$login.pl"	1693	(playerdir $login) . "/playerdata"
944	}	1694	}
945		1695
946	sub find_active($) {	1696	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1697	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1698	and $cf::PLAYER{$_[0]}->active
…		…
951		1701
952	sub exists($) {	1702	sub exists($) {
953	my ($login) = @_;	1703	my ($login) = @_;
954		1704
955	$cf::PLAYER{$login}	1705	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1706	or !aio_stat path $login
957	}	1707	}
958		1708
959	sub find($) {	1709	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1710	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1711	my $login = $_[0];
962		1712
963	my $guard = cf::lock_acquire "user_find:$login";	1713	my $guard = cf::lock_acquire "user_find:$login";
964		1714
965	$cf::PLAYER{$_[0]} || do {	1715	$cf::PLAYER{$_[0]} || do {
966	my $pl = load_pl path $login	1716	# rename old playerfiles to new ones
		1717	#TODO: remove when no longer required
		1718	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1719	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1720	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1721	aio_unlink +(playerdir $login) . "/$login.pl";
		1722
		1723	my $f = new_from_file cf::object::thawer path $login
967	or return;	1724	or return;
		1725
		1726	my $pl = cf::player::load_pl $f
		1727	or return;
		1728
		1729	local $cf::PLAYER_LOADING{$login} = $pl;
		1730	$f->resolve_delayed_derefs;
968	$cf::PLAYER{$login} = $pl	1731	$cf::PLAYER{$login} = $pl
969	}	1732	}
970	}	1733	}
971	}	1734	}
		1735
		1736	cf::player->attach (
		1737	on_load => sub {
		1738	my ($pl, $path) = @_;
		1739
		1740	# restore slots saved in save, below
		1741	my $slots = delete $pl->{_slots};
		1742
		1743	$pl->ob->current_weapon ($slots->[0]);
		1744	$pl->combat_ob ($slots->[1]);
		1745	$pl->ranged_ob ($slots->[2]);
		1746	},
		1747	);
972		1748
973	sub save($) {	1749	sub save($) {
974	my ($pl) = @_;	1750	my ($pl) = @_;
975		1751
976	return if $pl->{deny_save};	1752	return if $pl->{deny_save};
…		…
981	return if $pl->{deny_save};	1757	return if $pl->{deny_save};
982		1758
983	aio_mkdir playerdir $pl, 0770;	1759	aio_mkdir playerdir $pl, 0770;
984	$pl->{last_save} = $cf::RUNTIME;	1760	$pl->{last_save} = $cf::RUNTIME;
985		1761
		1762	cf::get_slot 0.01;
		1763
		1764	# save slots, to be restored later
		1765	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1766
986	$pl->save_pl ($path);	1767	$pl->save_pl ($path);
987	Coro::cede;	1768	cf::cede_to_tick;
988	}	1769	}
989		1770
990	sub new($) {	1771	sub new($) {
991	my ($login) = @_;	1772	my ($login) = @_;
992		1773
…		…
998	$cf::PLAYER{$login} = $self;	1779	$cf::PLAYER{$login} = $self;
999		1780
1000	$self	1781	$self
1001	}	1782	}
1002		1783
		1784	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1785
		1786	=cut
		1787
		1788	sub send_msg {
		1789	my $ns = shift->ns
		1790	or return;
		1791	$ns->send_msg (@_);
		1792	}
		1793
1003	=item $pl->quit_character	1794	=item $pl->quit_character
1004		1795
1005	Nukes the player without looking back. If logged in, the connection will	1796	Nukes the player without looking back. If logged in, the connection will
1006	be destroyed. May block for a long time.	1797	be destroyed. May block for a long time.
1007		1798
1008	=cut	1799	=cut
1009		1800
1010	sub quit_character {	1801	sub quit_character {
1011	my ($pl) = @_;	1802	my ($pl) = @_;
1012		1803
		1804	my $name = $pl->ob->name;
		1805
1013	$pl->{deny_save} = 1;	1806	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1807	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1015		1808
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1809	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1017	$pl->deactivate;	1810	$pl->deactivate;
		1811
		1812	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1018	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1813	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1814	ext::highscore::check ($pl->ob);
		1815
1019	$pl->ns->destroy if $pl->ns;	1816	$pl->ns->destroy if $pl->ns;
1020		1817
1021	my $path = playerdir $pl;	1818	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1819	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1820	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1821	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	1822	$pl->destroy;
		1823
		1824	my $prefix = qr<^~\Q$name\E/>;
		1825
		1826	# nuke player maps
		1827	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1828
1026	IO::AIO::aio_rmtree $temp;	1829	IO::AIO::aio_rmtree $temp;
		1830	}
		1831
		1832	=item $pl->kick
		1833
		1834	Kicks a player out of the game. This destroys the connection.
		1835
		1836	=cut
		1837
		1838	sub kick {
		1839	my ($pl, $kicker) = @_;
		1840
		1841	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1842	$pl->killer ("kicked");
		1843	$pl->ns->destroy;
1027	}	1844	}
1028		1845
1029	=item cf::player::list_logins	1846	=item cf::player::list_logins
1030		1847
1031	Returns am arrayref of all valid playernames in the system, can take a	1848	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1849	while and may block, so not sync_job-capable, ever.
1033		1850
1034	=cut	1851	=cut
1035		1852
1036	sub list_logins {	1853	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1854	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1855	or return [];
1039		1856
1040	my @logins;	1857	my @logins;
1041		1858
1042	for my $login (@$dirs) {	1859	for my $login (@$dirs) {
		1860	my $path = path $login;
		1861
		1862	# a .pst is a dead give-away for a valid player
		1863	# if no pst file found, open and chekc for blocked users
		1864	if (aio_stat "$path.pst") {
1043	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1865	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1044	aio_read $fh, 0, 512, my $buf, 0 or next;	1866	aio_read $fh, 0, 512, my $buf, 0 or next;
1045	$buf !~ /^password -------------$/m or next; # official not-valid tag	1867	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1868	}
1046		1869
1047	utf8::decode $login;	1870	utf8::decode $login;
1048	push @logins, $login;	1871	push @logins, $login;
1049	}	1872	}
1050		1873
1051	\@logins	1874	\@logins
1052	}	1875	}
1053		1876
1054	=item $player->maps	1877	=item $player->maps
1055		1878
		1879	=item cf::player::maps $login
		1880
1056	Returns an arrayref of map paths that are private for this	1881	Returns an arrayref of map paths that are private for this
1057	player. May block.	1882	player. May block.
1058		1883
1059	=cut	1884	=cut
1060		1885
1061	sub maps($) {	1886	sub maps($) {
1062	my ($pl) = @_;	1887	my ($pl) = @_;
		1888
		1889	$pl = ref $pl ? $pl->ob->name : $pl;
1063		1890
1064	my $files = aio_readdir playerdir $pl	1891	my $files = aio_readdir playerdir $pl
1065	or return;	1892	or return;
1066		1893
1067	my @paths;	1894	my @paths;
…		…
1069	for (@$files) {	1896	for (@$files) {
1070	utf8::decode $_;	1897	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1898	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1899	next unless /^$PATH_SEP/o;
1073		1900
1074	s/\.map$//;	1901	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1902	}
1077		1903
1078	\@paths	1904	\@paths
1079	}	1905	}
1080		1906
		1907	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1908
		1909	Expand deliantra pod fragments into protocol xml.
		1910
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1911	=item $player->ext_reply ($msgid, @msg)
1082		1912
1083	Sends an ext reply to the player.	1913	Sends an ext reply to the player.
1084		1914
1085	=cut	1915	=cut
1086		1916
1087	sub ext_reply($$$%) {	1917	sub ext_reply($$@) {
1088	my ($self, $id, %msg) = @_;	1918	my ($self, $id, @msg) = @_;
1089		1919
1090	$msg{msgid} = $id;	1920	$self->ns->ext_reply ($id, @msg)
1091
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1921	}
1094		1922
1095	package cf;	1923	=item $player->ext_msg ($type, @msg)
		1924
		1925	Sends an ext event to the client.
		1926
		1927	=cut
		1928
		1929	sub ext_msg($$@) {
		1930	my ($self, $type, @msg) = @_;
		1931
		1932	$self->ns->ext_msg ($type, @msg);
		1933	}
		1934
		1935	=head3 cf::region
		1936
		1937	=over 4
		1938
		1939	=cut
		1940
		1941	package cf::region;
		1942
		1943	=item cf::region::find_by_path $path
		1944
		1945	Tries to decuce the likely region for a map knowing only its path.
		1946
		1947	=cut
		1948
		1949	sub find_by_path($) {
		1950	my ($path) = @_;
		1951
		1952	$path =~ s/^~[^\/]*//; # skip ~login
		1953
		1954	my ($match, $specificity);
		1955
		1956	for my $region (list) {
		1957	if ($region->{match} && $path =~ $region->{match}) {
		1958	($match, $specificity) = ($region, $region->specificity)
		1959	if $region->specificity > $specificity;
		1960	}
		1961	}
		1962
		1963	$match
		1964	}
1096		1965
1097	=back	1966	=back
1098
1099		1967
1100	=head3 cf::map	1968	=head3 cf::map
1101		1969
1102	=over 4	1970	=over 4
1103		1971
…		…
1107		1975
1108	use Fcntl;	1976	use Fcntl;
1109	use Coro::AIO;	1977	use Coro::AIO;
1110		1978
1111	use overload	1979	use overload
1112	'""' => \&as_string;	1980	'""' => \&as_string,
		1981	fallback => 1;
1113		1982
1114	our $MAX_RESET = 3600;	1983	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1984	our $DEFAULT_RESET = 3000;
1116		1985
1117	sub generate_random_map {	1986	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1987	my ($self, $rmp) = @_;
1119		1988
1120	# mit "rum" bekleckern, nicht	1989	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1990
1121	$self->_create_random_map (	1991	$self->_create_random_map ($rmp);
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1125	$rmp->{exit_on_final_map},
1126	$rmp->{xsize}, $rmp->{ysize},
1127	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1128	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1129	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1130	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)
1134	}	1992	}
		1993
		1994	=item cf::map->register ($regex, $prio)
		1995
		1996	Register a handler for the map path matching the given regex at the
		1997	givne priority (higher is better, built-in handlers have priority 0, the
		1998	default).
		1999
		2000	=cut
1135		2001
1136	sub register {	2002	sub register {
1137	my (undef, $regex) = @_;	2003	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	2004	my $pkg = caller;
1139		2005
1140	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	2006	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		2007
1143	$EXT_MAP{$pkg} = qr<$regex>;	2008	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	2009	}
1145		2010
1146	# also paths starting with '/'	2011	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	2012	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2013
		2014	sub thawer_merge {
		2015	my ($self, $merge) = @_;
		2016
		2017	# we have to keep some variables in memory intact
		2018	local $self->{path};
		2019	local $self->{load_path};
		2020
		2021	$self->SUPER::thawer_merge ($merge);
		2022	}
1148		2023
1149	sub normalise {	2024	sub normalise {
1150	my ($path, $base) = @_;	2025	my ($path, $base) = @_;
		2026
		2027	$path = "$path"; # make sure it's a string
		2028
		2029	$path =~ s/\.map$//;
1151		2030
1152	# map plan:	2031	# map plan:
1153	#	2032	#
1154	# /! non-realised random map exit (special hack!)	2033	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	2034	# {... are special paths that are not being touched
…		…
1168	$base =~ s{[^/]+/?$}{};	2047	$base =~ s{[^/]+/?$}{};
1169	$path = "$base/$path";	2048	$path = "$base/$path";
1170	}	2049	}
1171		2050
1172	for ($path) {	2051	for ($path) {
1173	redo if s{//}{/};
1174	redo if s{/\.?/}{/};	2052	redo if s{/\.?/}{/};
1175	redo if s{/[^/]+/\.\./}{/};	2053	redo if s{/[^/]+/\.\./}{/};
1176	}	2054	}
1177		2055
1178	$path	2056	$path
…		…
1183		2061
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2062	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		2063
1186	$path = normalise $path, $base;	2064	$path = normalise $path, $base;
1187		2065
1188	for my $pkg (keys %EXT_MAP) {	2066	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	2067	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	2068	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	2069	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	2070	$self->init; # pass $1 etc.
1193	return $self;	2071	return $self;
1194	}	2072	}
1195	}	2073	}
1196		2074
1197	Carp::carp "unable to resolve path '$path'.";	2075	Carp::cluck "unable to resolve path '$path' (base '$base')";
1198	()	2076	()
1199	}	2077	}
1200		2078
		2079	# may re-bless or do other evil things
1201	sub init {	2080	sub init {
1202	my ($self) = @_;	2081	my ($self) = @_;
1203		2082
1204	$self	2083	$self
1205	}	2084	}
…		…
1217		2096
1218	# the original (read-only) location	2097	# the original (read-only) location
1219	sub load_path {	2098	sub load_path {
1220	my ($self) = @_;	2099	my ($self) = @_;
1221		2100
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2101	"$MAPDIR/$self->{path}.map"
1223	}	2102	}
1224		2103
1225	# the temporary/swap location	2104	# the temporary/swap location
1226	sub save_path {	2105	sub save_path {
1227	my ($self) = @_;	2106	my ($self) = @_;
1228		2107
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2108	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2109	"$TMPDIR/$path.map"
1231	}	2110	}
1232		2111
1233	# the unique path, undef == no special unique path	2112	# the unique path, undef == no special unique path
1234	sub uniq_path {	2113	sub uniq_path {
1235	my ($self) = @_;	2114	my ($self) = @_;
1236		2115
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2116	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2117	"$UNIQUEDIR/$path"
1239	}	2118	}
1240		2119
1241	# and all this just because we cannot iterate over	2120	sub decay_objects {
1242	# all maps in C++...
1243	sub change_all_map_light {
1244	my ($change) = @_;	2121	my ($self) = @_;
1245		2122
1246	$_->change_map_light ($change)	2123	return if $self->{deny_reset};
1247	for grep $_->outdoor, values %cf::MAP;	2124
		2125	$self->do_decay_objects;
1248	}	2126	}
1249		2127
1250	sub unlink_save {	2128	sub unlink_save {
1251	my ($self) = @_;	2129	my ($self) = @_;
1252		2130
1253	utf8::encode (my $save = $self->save_path);	2131	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	2132	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	2133	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	2134	}
1257		2135
1258	sub load_header_from($) {	2136	sub load_header_from($) {
1259	my ($self, $path) = @_;	2137	my ($self, $path) = @_;
1260		2138
1261	utf8::encode $path;	2139	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	2140	my $f = new_from_file cf::object::thawer $path
1263	or return;	2141	or return;
1264		2142
1265	$self->_load_header ($path)	2143	$self->_load_header ($f)
1266	or return;	2144	or return;
1267		2145
		2146	local $MAP_LOADING{$self->{path}} = $self;
		2147	$f->resolve_delayed_derefs;
		2148
1268	$self->{load_path} = $path;	2149	$self->{load_path} = $path;
1269		2150
1270	1	2151	1
1271	}	2152	}
1272		2153
		2154	# used to laod the header of an original map
1273	sub load_orig {	2155	sub load_header_orig {
1274	my ($self) = @_;	2156	my ($self) = @_;
1275		2157
1276	$self->load_header_from ($self->load_path)	2158	$self->load_header_from ($self->load_path)
1277	}	2159	}
1278		2160
		2161	# used to laod the header of an instantiated map
1279	sub load_temp {	2162	sub load_header_temp {
1280	my ($self) = @_;	2163	my ($self) = @_;
1281		2164
1282	$self->load_header_from ($self->save_path)	2165	$self->load_header_from ($self->save_path)
		2166	}
		2167
		2168	# called after loading the header from an instantiated map
		2169	sub prepare_temp {
		2170	my ($self) = @_;
		2171
		2172	$self->last_access ((delete $self->{last_access})
		2173	|| $cf::RUNTIME); #d#
		2174	# safety
		2175	$self->{instantiate_time} = $cf::RUNTIME
		2176	if $self->{instantiate_time} > $cf::RUNTIME;
		2177	}
		2178
		2179	# called after loading the header from an original map
		2180	sub prepare_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->{load_original} = 1;
		2184	$self->{instantiate_time} = $cf::RUNTIME;
		2185	$self->last_access ($cf::RUNTIME);
		2186	$self->instantiate;
1283	}	2187	}
1284		2188
1285	sub load_header {	2189	sub load_header {
1286	my ($self) = @_;	2190	my ($self) = @_;
1287		2191
1288	if ($self->load_temp) {	2192	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	2193	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	2194	} else {
1295	$self->load_orig	2195	$self->load_header_orig
1296	or return;	2196	or return;
1297		2197	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	2198	}
		2199
		2200	$self->{deny_reset} = 1
		2201	if $self->no_reset;
		2202
		2203	$self->default_region (cf::region::find_by_path $self->{path})
		2204	unless $self->default_region;
1303		2205
1304	1	2206	1
1305	}	2207	}
1306		2208
1307	sub find;	2209	sub find;
1308	sub find {	2210	sub find {
1309	my ($path, $origin) = @_;	2211	my ($path, $origin) = @_;
1310		2212
		2213	cf::cede_to_tick;
		2214
1311	$path = normalise $path, $origin && $origin->path;	2215	$path = normalise $path, $origin;
1312		2216
		2217	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1313	cf::lock_wait "map_find:$path";	2218	my $guard2 = cf::lock_acquire "map_find:$path";
1314		2219
1315	$cf::MAP{$path} || do {	2220	$cf::MAP{$path} || do {
1316	my $guard = cf::lock_acquire "map_find:$path";
1317	my $map = new_from_path cf::map $path	2221	my $map = new_from_path cf::map $path
1318	or return;	2222	or return;
1319		2223
1320	$map->{last_save} = $cf::RUNTIME;	2224	$map->{last_save} = $cf::RUNTIME;
1321		2225
1322	$map->load_header	2226	$map->load_header
1323	or return;	2227	or return;
1324		2228
1325	if ($map->should_reset) {	2229	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2230	# doing this can freeze the server in a sync job, obviously
		2231	#$cf::WAIT_FOR_TICK->wait;
		2232	undef $guard2;
		2233	undef $guard1;
1326	$map->reset;	2234	$map->reset;
1327	undef $guard;
1328	$map = find $path	2235	return find $path;
1329	or return;
1330	}	2236	}
1331		2237
1332	$cf::MAP{$path} = $map	2238	$cf::MAP{$path} = $map
1333	}	2239	}
1334	}	2240	}
		2241
		2242	sub pre_load { }
		2243	#sub post_load { } # XS
1335		2244
1336	sub load {	2245	sub load {
1337	my ($self) = @_;	2246	my ($self) = @_;
1338		2247
		2248	local $self->{deny_reset} = 1; # loading can take a long time
		2249
1339	my $path = $self->{path};	2250	my $path = $self->{path};
		2251
		2252	{
1340	my $guard = cf::lock_acquire "map_load:$path";	2253	my $guard = cf::lock_acquire "map_data:$path";
1341		2254
1342	return if $self->in_memory != cf::MAP_SWAPPED;	2255	return unless $self->valid;
		2256	return unless $self->state == cf::MAP_SWAPPED;
1343		2257
1344	$self->in_memory (cf::MAP_LOADING);
1345
1346	$self->alloc;	2258	$self->alloc;
1347	$self->_load_objects ($self->{load_path}, 1)	2259
		2260	$self->pre_load;
		2261	cf::cede_to_tick;
		2262
		2263	if (exists $self->{load_path}) {
		2264	my $f = new_from_file cf::object::thawer $self->{load_path};
		2265	$f->skip_block;
		2266	$self->_load_objects ($f)
1348	or return;	2267	or return;
1349		2268
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2269	$self->post_load_original
1351	if delete $self->{load_original};	2270	if delete $self->{load_original};
1352		2271
1353	if (my $uniq = $self->uniq_path) {	2272	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;	2273	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {	2274	unless (aio_stat $uniq) {
		2275	if (my $f = new_from_file cf::object::thawer $uniq) {
1356	$self->clear_unique_items;	2276	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);	2277	$self->_load_objects ($f);
		2278	$f->resolve_delayed_derefs;
		2279	}
		2280	}
1358	}	2281	}
1359	}
1360		2282
1361	Coro::cede;	2283	$f->resolve_delayed_derefs;
		2284	} else {
		2285	$self->post_load_original
		2286	if delete $self->{load_original};
		2287	}
1362		2288
		2289	$self->state (cf::MAP_INACTIVE);
		2290
		2291	cf::cede_to_tick;
1363	# now do the right thing for maps	2292	# now do the right thing for maps
1364	$self->link_multipart_objects;	2293	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;
1371	$self->set_darkness_map;
1372	$self->difficulty ($self->estimate_difficulty)	2294	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	2295	unless $self->difficulty;
1374	Coro::cede;	2296	cf::cede_to_tick;
1375	$self->activate;	2297
		2298	unless ($self->{deny_activate}) {
		2299	$self->decay_objects;
		2300	$self->fix_auto_apply;
		2301	$self->update_buttons;
		2302	cf::cede_to_tick;
		2303	#$self->activate; # no longer activate maps automatically
		2304	}
		2305
		2306	$self->{last_save} = $cf::RUNTIME;
		2307	$self->last_access ($cf::RUNTIME);
		2308	}
		2309
		2310	$self->post_load;
		2311
1376	}	2312	1
1377
1378	$self->in_memory (cf::MAP_IN_MEMORY);
1379	}	2313	}
1380		2314
		2315	# customize the map for a given player, i.e.
		2316	# return the _real_ map. used by e.g. per-player
		2317	# maps to change the path to ~playername/mappath
1381	sub customise_for {	2318	sub customise_for {
1382	my ($self, $ob) = @_;	2319	my ($self, $ob) = @_;
1383		2320
1384	return find "~" . $ob->name . "/" . $self->{path}	2321	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	2322	if $self->per_player;
1386		2323
		2324	# return find "?party/" . $ob->name . "/" . $self->{path}
		2325	# if $self->per_party;
		2326
1387	$self	2327	$self
1388	}
1389
1390	# find and load all maps in the 3x3 area around a map
1391	sub load_diag {
1392	my ($map) = @_;
1393
1394	my @diag; # diagonal neighbours
1395
1396	for (0 .. 3) {
1397	my $neigh = $map->tile_path ($_)
1398	or next;
1399	$neigh = find $neigh, $map
1400	or next;
1401	$neigh->load;
1402
1403	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1404	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1405	}
1406
1407	for (@diag) {
1408	my $neigh = find @$_
1409	or next;
1410	$neigh->load;
1411	}
1412	}	2328	}
1413		2329
1414	sub find_sync {	2330	sub find_sync {
1415	my ($path, $origin) = @_;	2331	my ($path, $origin) = @_;
1416		2332
1417	cf::sync_job { find $path, $origin }	2333	# it's a bug to call this from the main context
		2334	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2335	if $Coro::current == $Coro::main;
		2336
		2337	find $path, $origin
1418	}	2338	}
1419		2339
1420	sub do_load_sync {	2340	sub do_load_sync {
1421	my ($map) = @_;	2341	my ($map) = @_;
1422		2342
1423	cf::sync_job { $map->load };	2343	# it's a bug to call this from the main context
		2344	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2345	if $Coro::current == $Coro::main;
		2346
		2347	$map->load;
1424	}	2348	}
1425		2349
1426	our %MAP_PREFETCH;	2350	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	2351	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		2352
1440	sub find_async {	2353	sub find_async {
1441	my ($path, $origin) = @_;	2354	my ($path, $origin, $load) = @_;
1442		2355
1443	$path = normalise $path, $origin && $origin->{path};	2356	$path = normalise $path, $origin;
1444		2357
1445	if (my $map = $cf::MAP{$path}) {	2358	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2359	return $map if !$load || $map->linkable;
		2360	}
		2361
		2362	$MAP_PREFETCH{$path} |= $load;
		2363
		2364	$MAP_PREFETCHER ||= cf::async {
		2365	$Coro::current->{desc} = "map prefetcher";
		2366
		2367	while (%MAP_PREFETCH) {
		2368	while (my ($k, $v) = each %MAP_PREFETCH) {
		2369	if (my $map = find $k) {
		2370	$map->load if $v;
		2371	}
		2372
		2373	delete $MAP_PREFETCH{$k};
		2374	}
		2375	}
		2376	undef $MAP_PREFETCHER;
1447	}	2377	};
1448
1449	$MAP_PREFETCH{$path} = 0;
1450	$MAP_PREFETCHER->ready;	2378	$MAP_PREFETCHER->prio (6);
1451		2379
1452	()	2380	()
1453	}	2381	}
1454		2382
		2383	# common code, used by both ->save and ->swapout
1455	sub save {	2384	sub _save {
1456	my ($self) = @_;	2385	my ($self) = @_;
1457
1458	my $lock = cf::lock_acquire "map_data:" . $self->path;
1459		2386
1460	$self->{last_save} = $cf::RUNTIME;	2387	$self->{last_save} = $cf::RUNTIME;
1461		2388
1462	return unless $self->dirty;	2389	return unless $self->dirty;
1463		2390
…		…
1469	return if $self->{deny_save};	2396	return if $self->{deny_save};
1470		2397
1471	local $self->{last_access} = $self->last_access;#d#	2398	local $self->{last_access} = $self->last_access;#d#
1472		2399
1473	cf::async {	2400	cf::async {
		2401	$Coro::current->{desc} = "map player save";
1474	$_->contr->save for $self->players;	2402	$_->contr->save for $self->players;
1475	};	2403	};
		2404
		2405	cf::get_slot 0.02;
1476		2406
1477	if ($uniq) {	2407	if ($uniq) {
1478	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2408	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1479	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2409	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1480	} else {	2410	} else {
1481	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2411	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1482	}	2412	}
1483	}	2413	}
1484		2414
		2415	sub save {
		2416	my ($self) = @_;
		2417
		2418	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2419
		2420	$self->_save;
		2421	}
		2422
1485	sub swap_out {	2423	sub swap_out {
1486	my ($self) = @_;	2424	my ($self) = @_;
1487		2425
1488	# save first because save cedes
1489	$self->save;
1490
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2426	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2427
		2428	return if !$self->linkable;
		2429	return if $self->{deny_save};
1493	return if $self->players;	2430	return if $self->players;
1494	return if $self->in_memory != cf::MAP_IN_MEMORY;
1495	return if $self->{deny_save};
1496		2431
		2432	# first deactivate the map and "unlink" it from the core
		2433	$self->deactivate;
		2434	$_->clear_links_to ($self) for values %cf::MAP;
		2435	$self->state (cf::MAP_SWAPPED);
		2436
		2437	# then atomically save
		2438	$self->_save;
		2439
		2440	# then free the map
1497	$self->clear;	2441	$self->clear;
1498	$self->in_memory (cf::MAP_SWAPPED);
1499	}	2442	}
1500		2443
1501	sub reset_at {	2444	sub reset_at {
1502	my ($self) = @_;	2445	my ($self) = @_;
1503		2446
1504	# TODO: safety, remove and allow resettable per-player maps	2447	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	2448	return 1e99 if $self->{deny_reset};
1507		2449
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2450	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2451	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		2452
…		…
1515	my ($self) = @_;	2457	my ($self) = @_;
1516		2458
1517	$self->reset_at <= $cf::RUNTIME	2459	$self->reset_at <= $cf::RUNTIME
1518	}	2460	}
1519		2461
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	2462	sub reset {
1535	my ($self) = @_;	2463	my ($self) = @_;
1536		2464
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	2465	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		2466
1539	return if $self->players;	2467	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		2468
1542	warn "resetting map ", $self->path;#d#	2469	cf::trace "resetting map ", $self->path, "\n";
		2470
		2471	$self->state (cf::MAP_SWAPPED);
		2472
		2473	# need to save uniques path
		2474	unless ($self->{deny_save}) {
		2475	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2476
		2477	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2478	if $uniq;
		2479	}
1543		2480
1544	delete $cf::MAP{$self->path};	2481	delete $cf::MAP{$self->path};
1545		2482
1546	$self->in_memory (cf::MAP_SWAPPED);	2483	$self->deactivate;
		2484	$_->clear_links_to ($self) for values %cf::MAP;
1547	$self->clear;	2485	$self->clear;
1548
1549	$_->clear_links_to ($self) for values %cf::MAP;
1550		2486
1551	$self->unlink_save;	2487	$self->unlink_save;
1552	$self->destroy;	2488	$self->destroy;
1553	}	2489	}
1554		2490
1555	my $nuke_counter = "aaaa";	2491	my $nuke_counter = "aaaa";
1556		2492
1557	sub nuke {	2493	sub nuke {
1558	my ($self) = @_;	2494	my ($self) = @_;
1559		2495
		2496	{
		2497	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2498
		2499	delete $cf::MAP{$self->path};
		2500
		2501	$self->unlink_save;
		2502
		2503	bless $self, "cf::map::wrap";
		2504	delete $self->{deny_reset};
1560	$self->{deny_save} = 1;	2505	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2506	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2507	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2508
		2509	$cf::MAP{$self->path} = $self;
		2510	}
		2511
1563	$self->reset; # polite request, might not happen	2512	$self->reset; # polite request, might not happen
		2513	}
		2514
		2515	=item $maps = cf::map::tmp_maps
		2516
		2517	Returns an arrayref with all map paths of currently instantiated and saved
		2518	maps. May block.
		2519
		2520	=cut
		2521
		2522	sub tmp_maps() {
		2523	[
		2524	map {
		2525	utf8::decode $_;
		2526	/\.map$/
		2527	? normalise $_
		2528	: ()
		2529	} @{ aio_readdir $TMPDIR or [] }
		2530	]
		2531	}
		2532
		2533	=item $maps = cf::map::random_maps
		2534
		2535	Returns an arrayref with all map paths of currently instantiated and saved
		2536	random maps. May block.
		2537
		2538	=cut
		2539
		2540	sub random_maps() {
		2541	[
		2542	map {
		2543	utf8::decode $_;
		2544	/\.map$/
		2545	? normalise "?random/$_"
		2546	: ()
		2547	} @{ aio_readdir $RANDOMDIR or [] }
		2548	]
1564	}	2549	}
1565		2550
1566	=item cf::map::unique_maps	2551	=item cf::map::unique_maps
1567		2552
1568	Returns an arrayref of paths of all shared maps that have	2553	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2554	instantiated unique items. May block.
1570		2555
1571	=cut	2556	=cut
1572		2557
1573	sub unique_maps() {	2558	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2559	[
1575	or return;	2560	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2561	utf8::decode $_;
1581	next if /\.pst$/;	2562	s/\.map$//; # TODO future compatibility hack
1582	next unless /^$PATH_SEP/o;	2563	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2564	? ()
		2565	: normalise $_
		2566	} @{ aio_readdir $UNIQUEDIR or [] }
		2567	]
		2568	}
1583		2569
		2570	=item cf::map::static_maps
		2571
		2572	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2573	file in the shared directory excluding F</styles> and F</editor>). May
		2574	block.
		2575
		2576	=cut
		2577
		2578	sub static_maps() {
		2579	my @dirs = "";
		2580	my @maps;
		2581
		2582	while (@dirs) {
		2583	my $dir = shift @dirs;
		2584
		2585	next if $dir eq "/styles" || $dir eq "/editor";
		2586
		2587	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2588	or return;
		2589
		2590	for (@$files) {
1584	s/\.map$//;	2591	s/\.map$// or next;
1585	push @paths, $_;	2592	utf8::decode $_;
1586	}	2593	push @maps, "$dir/$_";
		2594	}
1587		2595
1588	\@paths	2596	push @dirs, map "$dir/$_", @$dirs;
1589	}	2597	}
1590		2598
1591	package cf;	2599	\@maps
		2600	}
1592		2601
1593	=back	2602	=back
1594		2603
1595	=head3 cf::object	2604	=head3 cf::object
1596		2605
…		…
1600		2609
1601	=over 4	2610	=over 4
1602		2611
1603	=item $ob->inv_recursive	2612	=item $ob->inv_recursive
1604		2613
1605	Returns the inventory of the object _and_ their inventories, recursively.	2614	Returns the inventory of the object I<and> their inventories, recursively,
		2615	but I<not> the object itself.
1606		2616
1607	=cut	2617	=cut
1608		2618
1609	sub inv_recursive_;	2619	sub inv_recursive_;
1610	sub inv_recursive_ {	2620	sub inv_recursive_ {
…		…
1613		2623
1614	sub inv_recursive {	2624	sub inv_recursive {
1615	inv_recursive_ inv $_[0]	2625	inv_recursive_ inv $_[0]
1616	}	2626	}
1617		2627
		2628	=item $ref = $ob->ref
		2629
		2630	Creates and returns a persistent reference to an object that can be stored as a string.
		2631
		2632	=item $ob = cf::object::deref ($refstring)
		2633
		2634	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2635	even if the object actually exists. May block.
		2636
		2637	=cut
		2638
		2639	sub deref {
		2640	my ($ref) = @_;
		2641
		2642	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2643	my ($uuid, $name) = ($1, $2);
		2644	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2645	or return;
		2646	$pl->ob->uuid eq $uuid
		2647	or return;
		2648
		2649	$pl->ob
		2650	} else {
		2651	warn "$ref: cannot resolve object reference\n";
		2652	undef
		2653	}
		2654	}
		2655
1618	package cf;	2656	package cf;
1619		2657
1620	=back	2658	=back
1621		2659
1622	=head3 cf::object::player	2660	=head3 cf::object::player
…		…
1628	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2666	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1629	can be C<undef>. Does the right thing when the player is currently in a	2667	can be C<undef>. Does the right thing when the player is currently in a
1630	dialogue with the given NPC character.	2668	dialogue with the given NPC character.
1631		2669
1632	=cut	2670	=cut
		2671
		2672	our $SAY_CHANNEL = {
		2673	id => "say",
		2674	title => "Map",
		2675	reply => "say ",
		2676	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2677	};
		2678
		2679	our $CHAT_CHANNEL = {
		2680	id => "chat",
		2681	title => "Chat",
		2682	reply => "chat ",
		2683	tooltip => "Player chat and shouts, global to the server.",
		2684	};
1633		2685
1634	# rough implementation of a future "reply" method that works	2686	# rough implementation of a future "reply" method that works
1635	# with dialog boxes.	2687	# with dialog boxes.
1636	#TODO: the first argument must go, split into a $npc->reply_to ( method	2688	#TODO: the first argument must go, split into a $npc->reply_to ( method
1637	sub cf::object::player::reply($$$;$) {	2689	sub cf::object::player::reply($$$;$) {
…		…
1639		2691
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2692	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2693
1642	if ($self->{record_replies}) {	2694	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2695	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2696
1644	} else {	2697	} else {
		2698	my $pl = $self->contr;
		2699
		2700	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2701	my $dialog = $pl->{npc_dialog};
		2702	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2703
		2704	} else {
1645	$msg = $npc->name . " says: $msg" if $npc;	2705	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2706	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2707	}
1647	}	2708	}
		2709	}
		2710
		2711	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2712
		2713	=cut
		2714
		2715	sub cf::object::send_msg {
		2716	my $pl = shift->contr
		2717	or return;
		2718	$pl->send_msg (@_);
1648	}	2719	}
1649		2720
1650	=item $player_object->may ("access")	2721	=item $player_object->may ("access")
1651		2722
1652	Returns wether the given player is authorized to access resource "access"	2723	Returns wether the given player is authorized to access resource "access"
…		…
1665		2736
1666	=item $player_object->enter_link	2737	=item $player_object->enter_link
1667		2738
1668	Freezes the player and moves him/her to a special map (C<{link}>).	2739	Freezes the player and moves him/her to a special map (C<{link}>).
1669		2740
1670	The player should be reasonably safe there for short amounts of time. You	2741	The player should be reasonably safe there for short amounts of time (e.g.
1671	I<MUST> call C<leave_link> as soon as possible, though.	2742	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2743	though, as the player cannot control the character while it is on the link
		2744	map.
1672		2745
1673	Will never block.	2746	Will never block.
1674		2747
1675	=item $player_object->leave_link ($map, $x, $y)	2748	=item $player_object->leave_link ($map, $x, $y)
1676		2749
…		…
1684	=cut	2757	=cut
1685		2758
1686	sub link_map {	2759	sub link_map {
1687	unless ($LINK_MAP) {	2760	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2761	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2763	$LINK_MAP->load;
1691	}	2764	}
1692		2765
1693	$LINK_MAP	2766	$LINK_MAP
1694	}	2767	}
…		…
1696	sub cf::object::player::enter_link {	2769	sub cf::object::player::enter_link {
1697	my ($self) = @_;	2770	my ($self) = @_;
1698		2771
1699	$self->deactivate_recursive;	2772	$self->deactivate_recursive;
1700		2773
		2774	++$self->{_link_recursion};
		2775
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2776	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2777
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2779	if $self->map && $self->map->{path} ne "{link}";
1705		2780
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2781	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1707	}	2782	}
1708		2783
1709	sub cf::object::player::leave_link {	2784	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2785	my ($self, $map, $x, $y) = @_;
		2786
		2787	return unless $self->contr->active;
1711		2788
1712	my $link_pos = delete $self->{_link_pos};	2789	my $link_pos = delete $self->{_link_pos};
1713		2790
1714	unless ($map) {	2791	unless ($map) {
1715	# restore original map position	2792	# restore original map position
…		…
1726	($x, $y) = (-1, -1)	2803	($x, $y) = (-1, -1)
1727	unless (defined $x) && (defined $y);	2804	unless (defined $x) && (defined $y);
1728		2805
1729	# use -1 or undef as default coordinates, not 0, 0	2806	# use -1 or undef as default coordinates, not 0, 0
1730	($x, $y) = ($map->enter_x, $map->enter_y)	2807	($x, $y) = ($map->enter_x, $map->enter_y)
1731	if $x <=0 && $y <= 0;	2808	if $x <= 0 && $y <= 0;
1732		2809
1733	$map->load;	2810	$map->load;
1734	$map->load_diag;
1735		2811
1736	return unless $self->contr->active;	2812	return unless $self->contr->active;
		2813
		2814	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2815	if ($self->enter_map ($map, $x, $y)) {
		2816	# entering was successful
		2817	delete $self->{_link_recursion};
		2818	# only activate afterwards, to support waiting in hooks
1737	$self->activate_recursive;	2819	$self->activate_recursive;
1738	$self->enter_map ($map, $x, $y);
1739	}
1740
1741	cf::player->attach (
1742	on_logout => sub {
1743	my ($pl) = @_;
1744
1745	# abort map switching before logout
1746	if ($pl->ob->{_link_pos}) {
1747	cf::sync_job {
1748	$pl->ob->leave_link
1749	};
1750	}
1751	},	2820	}
1752	on_login => sub {
1753	my ($pl) = @_;
1754		2821
1755	# try to abort aborted map switching on player login :)	2822	}
1756	# should happen only on crashes
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772		2823
1773	=item $player_object->goto ($path, $x, $y)	2824	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1774		2825
		2826	Moves the player to the given map-path and coordinates by first freezing
		2827	her, loading and preparing them map, calling the provided $check callback
		2828	that has to return the map if sucecssful, and then unfreezes the player on
		2829	the new (success) or old (failed) map position. In either case, $done will
		2830	be called at the end of this process.
		2831
		2832	Note that $check will be called with a potentially non-loaded map, so if
		2833	it needs a loaded map it has to call C<< ->load >>.
		2834
1775	=cut	2835	=cut
		2836
		2837	our $GOTOGEN;
1776		2838
1777	sub cf::object::player::goto {	2839	sub cf::object::player::goto {
1778	my ($self, $path, $x, $y) = @_;	2840	my ($self, $path, $x, $y, $check, $done) = @_;
		2841
		2842	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2843	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2844	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2845	($path, $x, $y) = @$EMERGENCY_POSITION;
		2846	}
		2847
		2848	# do generation counting so two concurrent goto's will be executed in-order
		2849	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1779		2850
1780	$self->enter_link;	2851	$self->enter_link;
1781		2852
1782	(async {	2853	(async {
1783	my $map = cf::map::find $path;	2854	$Coro::current->{desc} = "player::goto $path $x $y";
		2855
		2856	# *tag paths override both path and x|y
		2857	if ($path =~ /^\*(.*)$/) {
		2858	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2859	my $ob = $obs[rand @obs];
		2860
		2861	# see if we actually can go there
		2862	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2863	$ob = $obs[rand @obs];
		2864	} else {
		2865	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2866	}
		2867	# else put us there anyways for now #d#
		2868
		2869	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2870	} else {
		2871	($path, $x, $y) = (undef, undef, undef);
		2872	}
		2873	}
		2874
		2875	my $map = eval {
		2876	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2877
		2878	if ($map) {
1784	$map = $map->customise_for ($self) if $map;	2879	$map = $map->customise_for ($self);
1785		2880	$map = $check->($map, $x, $y, $self) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2881	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2882	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2883	}
1790		2884
		2885	$map
		2886	};
		2887
		2888	if ($@) {
		2889	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	LOG llevError | logBacktrace, Carp::longmess $@;
		2891	}
		2892
		2893	if ($gen == $self->{_goto_generation}) {
		2894	delete $self->{_goto_generation};
1791	$self->leave_link ($map, $x, $y);	2895	$self->leave_link ($map, $x, $y);
		2896	}
		2897
		2898	$done->($self) if $done;
1792	})->prio (1);	2899	})->prio (1);
1793	}	2900	}
1794		2901
1795	=item $player_object->enter_exit ($exit_object)	2902	=item $player_object->enter_exit ($exit_object)
1796		2903
…		…
1798		2905
1799	sub parse_random_map_params {	2906	sub parse_random_map_params {
1800	my ($spec) = @_;	2907	my ($spec) = @_;
1801		2908
1802	my $rmp = { # defaults	2909	my $rmp = { # defaults
1803	xsize => 10,	2910	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2911	ysize => (cf::rndm 15, 40),
		2912	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2913	#layout => string,
1805	};	2914	};
1806		2915
1807	for (split /\n/, $spec) {	2916	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2917	my ($k, $v) = split /\s+/, $_, 2;
1809		2918
…		…
1821	# that depends on the exit object	2930	# that depends on the exit object
1822		2931
1823	my $rmp = parse_random_map_params $exit->msg;	2932	my $rmp = parse_random_map_params $exit->msg;
1824		2933
1825	if ($exit->map) {	2934	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2935	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2936	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2937	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2938	$rmp->{origin_y} = $exit->y;
		2939
		2940	$exit->map->touch;
1830	}	2941	}
1831		2942
1832	$rmp->{random_seed} ||= $exit->random_seed;	2943	$rmp->{random_seed} ||= $exit->random_seed;
1833		2944
1834	my $data = cf::to_json $rmp;	2945	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1835	my $md5 = Digest::MD5::md5_hex $data;	2946	my $md5 = Digest::MD5::md5_hex $data;
		2947	my $meta = "$RANDOMDIR/$md5.meta";
1836		2948
1837	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2949	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838	aio_write $fh, 0, (length $data), $data, 0;	2950	aio_write $fh, 0, (length $data), $data, 0;
		2951	undef $fh;
		2952	aio_rename "$meta~", $meta;
1839		2953
		2954	my $slaying = "?random/$md5";
		2955
		2956	if ($exit->valid) {
1840	$exit->slaying ("?random/$md5");	2957	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2958	$exit->msg (undef);
		2959	}
1842	}	2960	}
1843	}	2961	}
1844		2962
1845	sub cf::object::player::enter_exit {	2963	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2964	my ($self, $exit) = @_;
…		…
1848	return unless $self->type == cf::PLAYER;	2966	return unless $self->type == cf::PLAYER;
1849		2967
1850	$self->enter_link;	2968	$self->enter_link;
1851		2969
1852	(async {	2970	(async {
1853	$self->deactivate_recursive; # just to be sure	2971	$Coro::current->{desc} = "enter_exit";
		2972
1854	unless (eval {	2973	unless (eval {
		2974	$self->deactivate_recursive; # just to be sure
		2975
		2976	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2977	my $x = $exit->stats->hp;
		2978	my $y = $exit->stats->sp;
		2979
		2980	# special map handling
		2981	my $slaying = $exit->slaying;
		2982
		2983	# special map handling
		2984	if ($slaying eq "/!") {
		2985	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2986
1855	prepare_random_map $exit	2987	prepare_random_map $exit
		2988	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2989
1856	if $exit->slaying eq "/!";	2990	$map = $exit->slaying;
1857		2991
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2992	} elsif ($slaying eq '!up') {
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2993	$map = $exit->map->tile_path (cf::TILE_UP);
		2994	$x = $exit->x;
		2995	$y = $exit->y;
1860		2996
		2997	} elsif ($slaying eq '!down') {
		2998	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2999	$x = $exit->x;
		3000	$y = $exit->y;
		3001	}
		3002
		3003	$self->goto ($map, $x, $y);
		3004
		3005	# if exit is damned, update players death & WoR home-position
		3006	$self->contr->savebed ($map, $x, $y)
		3007	if $exit->flag (cf::FLAG_DAMNED);
		3008
1861	1;	3009	1
1862	}) {	3010	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	3011	$self->message ("Something went wrong deep within the deliantra server. "
1864	. "I'll try to bring you back to the map you were before. "	3012	. "I'll try to bring you back to the map you were before. "
1865	. "Please report this to the dungeon master!",	3013	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	3014	cf::NDI_UNIQUE | cf::NDI_RED);
1867		3015
1868	warn "ERROR in enter_exit: $@";	3016	error "ERROR in enter_exit: $@";
1869	$self->leave_link;	3017	$self->leave_link;
1870	}	3018	}
1871	})->prio (1);	3019	})->prio (1);
1872	}	3020	}
1873		3021
…		…
1884		3032
1885	sub cf::client::send_drawinfo {	3033	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	3034	my ($self, $text, $flags) = @_;
1887		3035
1888	utf8::encode $text;	3036	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3037	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	3038	}
1891		3039
		3040	=item $client->send_big_packet ($pkt)
		3041
		3042	Like C<send_packet>, but tries to compress large packets, and fragments
		3043	them as required.
		3044
		3045	=cut
		3046
		3047	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3048
		3049	sub cf::client::send_big_packet {
		3050	my ($self, $pkt) = @_;
		3051
		3052	# try lzf for large packets
		3053	$pkt = "lzf " . Compress::LZF::compress $pkt
		3054	if 1024 <= length $pkt and $self->{can_lzf};
		3055
		3056	# split very large packets
		3057	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3058	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3059	$pkt = "frag";
		3060	}
		3061
		3062	$self->send_packet ($pkt);
		3063	}
		3064
		3065	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3066
		3067	Send a drawinfo or msg packet to the client, formatting the msg for the
		3068	client if neccessary. C<$type> should be a string identifying the type of
		3069	the message, with C<log> being the default. If C<$color> is negative, suppress
		3070	the message unless the client supports the msg packet.
		3071
		3072	=cut
		3073
		3074	# non-persistent channels (usually the info channel)
		3075	our %CHANNEL = (
		3076	"c/motd" => {
		3077	id => "infobox",
		3078	title => "MOTD",
		3079	reply => undef,
		3080	tooltip => "The message of the day",
		3081	},
		3082	"c/identify" => {
		3083	id => "infobox",
		3084	title => "Identify",
		3085	reply => undef,
		3086	tooltip => "Items recently identified",
		3087	},
		3088	"c/examine" => {
		3089	id => "infobox",
		3090	title => "Examine",
		3091	reply => undef,
		3092	tooltip => "Signs and other items you examined",
		3093	},
		3094	"c/shopinfo" => {
		3095	id => "infobox",
		3096	title => "Shop Info",
		3097	reply => undef,
		3098	tooltip => "What your bargaining skill tells you about the shop",
		3099	},
		3100	"c/book" => {
		3101	id => "infobox",
		3102	title => "Book",
		3103	reply => undef,
		3104	tooltip => "The contents of a note or book",
		3105	},
		3106	"c/lookat" => {
		3107	id => "infobox",
		3108	title => "Look",
		3109	reply => undef,
		3110	tooltip => "What you saw there",
		3111	},
		3112	"c/who" => {
		3113	id => "infobox",
		3114	title => "Players",
		3115	reply => undef,
		3116	tooltip => "Shows players who are currently online",
		3117	},
		3118	"c/body" => {
		3119	id => "infobox",
		3120	title => "Body Parts",
		3121	reply => undef,
		3122	tooltip => "Shows which body parts you posess and are available",
		3123	},
		3124	"c/statistics" => {
		3125	id => "infobox",
		3126	title => "Statistics",
		3127	reply => undef,
		3128	tooltip => "Shows your primary statistics",
		3129	},
		3130	"c/skills" => {
		3131	id => "infobox",
		3132	title => "Skills",
		3133	reply => undef,
		3134	tooltip => "Shows your experience per skill and item power",
		3135	},
		3136	"c/shopitems" => {
		3137	id => "infobox",
		3138	title => "Shop Items",
		3139	reply => undef,
		3140	tooltip => "Shows the items currently for sale in this shop",
		3141	},
		3142	"c/resistances" => {
		3143	id => "infobox",
		3144	title => "Resistances",
		3145	reply => undef,
		3146	tooltip => "Shows your resistances",
		3147	},
		3148	"c/pets" => {
		3149	id => "infobox",
		3150	title => "Pets",
		3151	reply => undef,
		3152	tooltip => "Shows information abotu your pets/a specific pet",
		3153	},
		3154	"c/perceiveself" => {
		3155	id => "infobox",
		3156	title => "Perceive Self",
		3157	reply => undef,
		3158	tooltip => "You gained detailed knowledge about yourself",
		3159	},
		3160	"c/uptime" => {
		3161	id => "infobox",
		3162	title => "Uptime",
		3163	reply => undef,
		3164	tooltip => "How long the server has been running since last restart",
		3165	},
		3166	"c/mapinfo" => {
		3167	id => "infobox",
		3168	title => "Map Info",
		3169	reply => undef,
		3170	tooltip => "Information related to the maps",
		3171	},
		3172	"c/party" => {
		3173	id => "party",
		3174	title => "Party",
		3175	reply => "gsay ",
		3176	tooltip => "Messages and chat related to your party",
		3177	},
		3178	"c/death" => {
		3179	id => "death",
		3180	title => "Death",
		3181	reply => undef,
		3182	tooltip => "Reason for and more info about your most recent death",
		3183	},
		3184	"c/say" => $SAY_CHANNEL,
		3185	"c/chat" => $CHAT_CHANNEL,
		3186	);
		3187
		3188	sub cf::client::send_msg {
		3189	my ($self, $channel, $msg, $color, @extra) = @_;
		3190
		3191	$msg = $self->pl->expand_cfpod ($msg)
		3192	unless $color & cf::NDI_VERBATIM;
		3193
		3194	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3195
		3196	# check predefined channels, for the benefit of C
		3197	if ($CHANNEL{$channel}) {
		3198	$channel = $CHANNEL{$channel};
		3199
		3200	$self->ext_msg (channel_info => $channel);
		3201	$channel = $channel->{id};
		3202
		3203	} elsif (ref $channel) {
		3204	# send meta info to client, if not yet sent
		3205	unless (exists $self->{channel}{$channel->{id}}) {
		3206	$self->{channel}{$channel->{id}} = $channel;
		3207	$self->ext_msg (channel_info => $channel);
		3208	}
		3209
		3210	$channel = $channel->{id};
		3211	}
		3212
		3213	return unless @extra || length $msg;
		3214
		3215	# default colour, mask it out
		3216	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3217	if $color & cf::NDI_DEF;
		3218
		3219	my $pkt = "msg "
		3220	. $self->{json_coder}->encode (
		3221	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3222	);
		3223
		3224	$self->send_big_packet ($pkt);
		3225	}
		3226
		3227	=item $client->ext_msg ($type, @msg)
		3228
		3229	Sends an ext event to the client.
		3230
		3231	=cut
		3232
		3233	sub cf::client::ext_msg($$@) {
		3234	my ($self, $type, @msg) = @_;
		3235
		3236	if ($self->extcmd == 2) {
		3237	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3238	} elsif ($self->extcmd == 1) { # TODO: remove
		3239	push @msg, msgtype => "event_$type";
		3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3241	}
		3242	}
		3243
		3244	=item $client->ext_reply ($msgid, @msg)
		3245
		3246	Sends an ext reply to the client.
		3247
		3248	=cut
		3249
		3250	sub cf::client::ext_reply($$@) {
		3251	my ($self, $id, @msg) = @_;
		3252
		3253	return unless $self->extcmd == 2;
		3254
		3255	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3256	}
1892		3257
1893	=item $success = $client->query ($flags, "text", \&cb)	3258	=item $success = $client->query ($flags, "text", \&cb)
1894		3259
1895	Queues a query to the client, calling the given callback with	3260	Queues a query to the client, calling the given callback with
1896	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3261	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1897	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3262	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1898		3263
1899	Queries can fail, so check the return code. Or don't, as queries will become	3264	Queries can fail, so check the return code. Or don't, as queries will
1900	reliable at some point in the future.	3265	become reliable at some point in the future.
1901		3266
1902	=cut	3267	=cut
1903		3268
1904	sub cf::client::query {	3269	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	3270	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	3278	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3279	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		3280
1916	$self->send_packet ($self->{query_queue}[0][0])	3281	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	3282	if @{ $self->{query_queue} } == 1;
		3283
		3284	1
1918	}	3285	}
1919		3286
1920	cf::client->attach (	3287	cf::client->attach (
		3288	on_connect => sub {
		3289	my ($ns) = @_;
		3290
		3291	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3292	},
1921	on_reply => sub {	3293	on_reply => sub {
1922	my ($ns, $msg) = @_;	3294	my ($ns, $msg) = @_;
1923		3295
1924	# this weird shuffling is so that direct followup queries	3296	# this weird shuffling is so that direct followup queries
1925	# get handled first	3297	# get handled first
1926	my $queue = delete $ns->{query_queue}	3298	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	3299	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		3300
1929	(shift @$queue)->[1]->($msg);	3301	(shift @$queue)->[1]->($msg);
		3302	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		3303
1931	push @{ $ns->{query_queue} }, @$queue;	3304	push @{ $ns->{query_queue} }, @$queue;
1932		3305
1933	if (@{ $ns->{query_queue} } == @$queue) {	3306	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	3307	if (@$queue) {
…		…
1936	} else {	3309	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3310	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	3311	}
1939	}	3312	}
1940	},	3313	},
		3314	on_exticmd => sub {
		3315	my ($ns, $buf) = @_;
		3316
		3317	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3318
		3319	if (ref $msg) {
		3320	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3321
		3322	my @reply;
		3323
		3324	if (my $cb = $EXTICMD{$type}) {
		3325	@reply = $cb->($ns, @payload);
		3326	}
		3327
		3328	$ns->ext_reply ($reply, @reply)
		3329	if $reply;
		3330
		3331	} else {
		3332	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3333	}
		3334
		3335	cf::override;
		3336	},
1941	);	3337	);
1942		3338
1943	=item $client->async (\&cb)	3339	=item $client->async (\&cb)
1944		3340
1945	Create a new coroutine, running the specified callback. The coroutine will	3341	Create a new coroutine, running the specified callback. The coroutine will
…		…
1961		3357
1962	$coro	3358	$coro
1963	}	3359	}
1964		3360
1965	cf::client->attach (	3361	cf::client->attach (
1966	on_destroy => sub {	3362	on_client_destroy => sub {
1967	my ($ns) = @_;	3363	my ($ns) = @_;
1968		3364
1969	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3365	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1970	},	3366	},
1971	);	3367	);
…		…
1986	our $safe = new Safe "safe";	3382	our $safe = new Safe "safe";
1987	our $safe_hole = new Safe::Hole;	3383	our $safe_hole = new Safe::Hole;
1988		3384
1989	$SIG{FPE} = 'IGNORE';	3385	$SIG{FPE} = 'IGNORE';
1990		3386
1991	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3387	$safe->permit_only (Opcode::opset qw(
		3388	:base_core :base_mem :base_orig :base_math :base_loop
		3389	grepstart grepwhile mapstart mapwhile
		3390	sort time
		3391	));
1992		3392
1993	# here we export the classes and methods available to script code	3393	# here we export the classes and methods available to script code
1994		3394
1995	=pod	3395	=pod
1996		3396
1997	The following fucntions and emthods are available within a safe environment:	3397	The following functions and methods are available within a safe environment:
1998		3398
1999	cf::object contr pay_amount pay_player map	3399	cf::object
		3400	contr pay_amount pay_player map x y force_find force_add destroy
		3401	insert remove name archname title slaying race decrease split
		3402	value
		3403
2000	cf::object::player player	3404	cf::object::player
2001	cf::player peaceful	3405	player
2002	cf::map trigger	3406
		3407	cf::player
		3408	peaceful
		3409
		3410	cf::map
		3411	trigger
2003		3412
2004	=cut	3413	=cut
2005		3414
2006	for (	3415	for (
2007	["cf::object" => qw(contr pay_amount pay_player map)],	3416	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3417	insert remove inv nrof name archname title slaying race
		3418	decrease split destroy change_exp value msg lore send_msg)],
2008	["cf::object::player" => qw(player)],	3419	["cf::object::player" => qw(player)],
2009	["cf::player" => qw(peaceful)],	3420	["cf::player" => qw(peaceful send_msg)],
2010	["cf::map" => qw(trigger)],	3421	["cf::map" => qw(trigger)],
2011	) {	3422	) {
2012	no strict 'refs';
2013	my ($pkg, @funs) = @$_;	3423	my ($pkg, @funs) = @$_;
2014	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3424	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2015	for @funs;	3425	for @funs;
2016	}	3426	}
2017		3427
…		…
2032		3442
2033	my $qcode = $code;	3443	my $qcode = $code;
2034	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3444	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2035	$qcode =~ s/\n/\\n/g;	3445	$qcode =~ s/\n/\\n/g;
2036		3446
		3447	%vars = (_dummy => 0) unless %vars;
		3448
		3449	my @res;
2037	local $_;	3450	local $_;
2038	local @safe::cf::_safe_eval_args = values %vars;
2039		3451
2040	my $eval =	3452	my $eval =
2041	"do {\n"	3453	"do {\n"
2042	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3454	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2043	. "#line 0 \"{$qcode}\"\n"	3455	. "#line 0 \"{$qcode}\"\n"
2044	. $code	3456	. $code
2045	. "\n}"	3457	. "\n}"
2046	;	3458	;
2047		3459
		3460	if ($CFG{safe_eval}) {
2048	sub_generation_inc;	3461	sub_generation_inc;
		3462	local @safe::cf::_safe_eval_args = values %vars;
2049	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3463	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2050	sub_generation_inc;	3464	sub_generation_inc;
		3465	} else {
		3466	local @cf::_safe_eval_args = values %vars;
		3467	@res = wantarray ? eval eval : scalar eval $eval;
		3468	}
2051		3469
2052	if ($@) {	3470	if ($@) {
2053	warn "$@";	3471	warn "$@",
2054	warn "while executing safe code '$code'\n";	3472	"while executing safe code '$code'\n",
2055	warn "with arguments " . (join " ", %vars) . "\n";	3473	"with arguments " . (join " ", %vars) . "\n";
2056	}	3474	}
2057		3475
2058	wantarray ? @res : $res[0]	3476	wantarray ? @res : $res[0]
2059	}	3477	}
2060		3478
…		…
2074	=cut	3492	=cut
2075		3493
2076	sub register_script_function {	3494	sub register_script_function {
2077	my ($fun, $cb) = @_;	3495	my ($fun, $cb) = @_;
2078		3496
2079	no strict 'refs';	3497	$fun = "safe::$fun" if $CFG{safe_eval};
2080	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3498	*$fun = $safe_hole->wrap ($cb);
2081	}	3499	}
2082		3500
2083	=back	3501	=back
2084		3502
2085	=cut	3503	=cut
2086		3504
2087	#############################################################################	3505	#############################################################################
		3506	# the server's init and main functions
2088		3507
2089	=head2 EXTENSION DATABASE SUPPORT	3508	sub load_facedata($) {
		3509	my ($path) = @_;
2090		3510
2091	Crossfire maintains a very simple database for extension use. It can	3511	# HACK to clear player env face cache, we need some signal framework
2092	currently store anything that can be serialised using Storable, which	3512	# for this (global event?)
2093	excludes objects.	3513	%ext::player_env::MUSIC_FACE_CACHE = ();
2094		3514
2095	The parameter C<$family> should best start with the name of the extension	3515	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2096	using it, it should be unique.
2097		3516
2098	=over 4	3517	trace "loading facedata from $path\n";
2099		3518
2100	=item $hashref = cf::db_get $family	3519	my $facedata = decode_storable load_file $path;
2101		3520
2102	Return a hashref for use by the extension C<$family>, which can be	3521	$facedata->{version} == 2
2103	modified. After modifications, you have to call C<cf::db_dirty> or	3522	or cf::cleanup "$path: version mismatch, cannot proceed.";
2104	C<cf::db_sync>.
2105		3523
2106	=item $value = cf::db_get $family => $key	3524	# patch in the exptable
2107		3525	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2108	Returns a single value from the database	3526	$facedata->{resource}{"res/exp_table"} = {
2109		3527	type => FT_RSRC,
2110	=item cf::db_put $family => $hashref	3528	data => $exp_table,
2111		3529	hash => (Digest::MD5::md5 $exp_table),
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114
2115	=item cf::db_put $family => $key => $value
2116
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127
2128	=cut
2129
2130	our $DB;
2131
2132	{
2133	my $path = cf::localdir . "/database.pst";
2134
2135	sub db_load() {
2136	$DB = stat $path ? Storable::retrieve $path : { };
2137	}
2138
2139	my $pid;
2140
2141	sub db_save() {
2142	waitpid $pid, 0 if $pid;
2143	if (0 == ($pid = fork)) {
2144	$DB->{_meta}{version} = 1;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});	3530	};
		3531	cf::cede_to_tick;
2161		3532
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}	3533	{
		3534	my $faces = $facedata->{faceinfo};
2166		3535
2167	sub db_get($;$) {	3536	while (my ($face, $info) = each %$faces) {
2168	@_ >= 2	3537	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2169	? $DB->{$_[0]}{$_[1]}
2170	: ($DB->{$_[0]} ||= { })
2171	}
2172		3538
2173	sub db_put($$;$) {	3539	cf::face::set_visibility $idx, $info->{visibility};
2174	if (@_ >= 3) {	3540	cf::face::set_magicmap $idx, $info->{magicmap};
2175	$DB->{$_[0]}{$_[1]} = $_[2];	3541	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2176	} else {	3542	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2177	$DB->{$_[0]} = $_[1];	3543	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2178	}
2179	db_dirty;
2180	}
2181		3544
2182	cf::global->attach (	3545	cf::cede_to_tick;
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	3546	}
2187	);
2188	}
2189		3547
2190	#############################################################################	3548	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	3549	next unless $info->{smooth};
2192		3550
2193	sub cfg_load {	3551	my $idx = cf::face::find $face
2194	open my $fh, "<:utf8", cf::confdir . "/config"	3552	or next;
2195	or return;
2196		3553
2197	local $/;	3554	if (my $smooth = cf::face::find $info->{smooth}) {
2198	*CFG = YAML::Syck::Load <$fh>;	3555	cf::face::set_smooth $idx, $smooth;
		3556	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3557	} else {
		3558	error "smooth face '$info->{smooth}' not found for face '$face'";
		3559	}
2199		3560
		3561	cf::cede_to_tick;
		3562	}
		3563	}
		3564
		3565	{
		3566	my $anims = $facedata->{animinfo};
		3567
		3568	while (my ($anim, $info) = each %$anims) {
		3569	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3570	cf::cede_to_tick;
		3571	}
		3572
		3573	cf::anim::invalidate_all; # d'oh
		3574	}
		3575
		3576	{
		3577	my $res = $facedata->{resource};
		3578
		3579	while (my ($name, $info) = each %$res) {
		3580	if (defined (my $type = $info->{type})) {
		3581	# TODO: different hash - must free and use new index, or cache ixface data queue
		3582	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3583
		3584	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3585	cf::face::set_type $idx, $type;
		3586	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3587	} else {
		3588	# $RESOURCE{$name} = $info; # unused
		3589	}
		3590
		3591	cf::cede_to_tick;
		3592	}
		3593	}
		3594
		3595	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3596
		3597	1
		3598	}
		3599
		3600	register_exticmd fx_want => sub {
		3601	my ($ns, $want) = @_;
		3602
		3603	while (my ($k, $v) = each %$want) {
		3604	$ns->fx_want ($k, $v);
		3605	}
		3606	};
		3607
		3608	sub load_resource_file($) {
		3609	my $guard = lock_acquire "load_resource_file";
		3610
		3611	my $status = load_resource_file_ $_[0];
		3612	get_slot 0.1, 100;
		3613	cf::arch::commit_load;
		3614
		3615	$status
		3616	}
		3617
		3618	sub reload_regions {
		3619	# HACK to clear player env face cache, we need some signal framework
		3620	# for this (global event?)
		3621	%ext::player_env::MUSIC_FACE_CACHE = ();
		3622
		3623	load_resource_file "$MAPDIR/regions"
		3624	or die "unable to load regions file\n";
		3625
		3626	for (cf::region::list) {
		3627	$_->{match} = qr/$_->{match}/
		3628	if exists $_->{match};
		3629	}
		3630	}
		3631
		3632	sub reload_facedata {
		3633	load_facedata "$DATADIR/facedata"
		3634	or die "unable to load facedata\n";
		3635	}
		3636
		3637	sub reload_archetypes {
		3638	load_resource_file "$DATADIR/archetypes"
		3639	or die "unable to load archetypes\n";
		3640	}
		3641
		3642	sub reload_treasures {
		3643	load_resource_file "$DATADIR/treasures"
		3644	or die "unable to load treasurelists\n";
		3645	}
		3646
		3647	sub reload_sound {
		3648	trace "loading sound config from $DATADIR/sound\n";
		3649
		3650	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3651
		3652	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3653	my $sound = $soundconf->{compat}[$_]
		3654	or next;
		3655
		3656	my $face = cf::face::find "sound/$sound->[1]";
		3657	cf::sound::set $sound->[0] => $face;
		3658	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3659	}
		3660
		3661	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3662	my $face = cf::face::find "sound/$v";
		3663	cf::sound::set $k => $face;
		3664	}
		3665	}
		3666
		3667	sub reload_resources {
		3668	trace "reloading resource files...\n";
		3669
		3670	reload_exp_table;
		3671	reload_materials;
		3672	reload_facedata;
		3673	reload_sound;
		3674	reload_archetypes;
		3675	reload_regions;
		3676	reload_treasures;
		3677
		3678	trace "finished reloading resource files\n";
		3679	}
		3680
		3681	sub reload_config {
		3682	trace "reloading config file...\n";
		3683
		3684	my $config = load_file "$CONFDIR/config";
		3685	utf8::decode $config;
		3686	*CFG = decode_yaml $config;
		3687
2200	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3688	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2201		3689
2202	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3690	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2203	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3691	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2204		3692
2205	if (exists $CFG{mlockall}) {	3693	if (exists $CFG{mlockall}) {
…		…
2209	};	3697	};
2210	warn $@ if $@;	3698	warn $@ if $@;
2211	}	3699	}
2212	}	3700	}
2213		3701
		3702	sub pidfile() {
		3703	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3704	or die "$PIDFILE: $!";
		3705	flock $fh, &Fcntl::LOCK_EX
		3706	or die "$PIDFILE: flock: $!";
		3707	$fh
		3708	}
		3709
		3710	# make sure only one server instance is running at any one time
		3711	sub atomic {
		3712	my $fh = pidfile;
		3713
		3714	my $pid = <$fh>;
		3715	kill 9, $pid if $pid > 0;
		3716
		3717	seek $fh, 0, 0;
		3718	print $fh $$;
		3719	}
		3720
		3721	sub main_loop {
		3722	trace "EV::loop starting\n";
		3723	if (1) {
		3724	EV::loop;
		3725	}
		3726	trace "EV::loop returned\n";
		3727	goto &main_loop unless $REALLY_UNLOOP;
		3728	}
		3729
2214	sub main {	3730	sub main {
		3731	cf::init_globals; # initialise logging
		3732
		3733	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3734	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3735	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3736	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3737
		3738	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3739
2215	# we must not ever block the main coroutine	3740	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	3741	local $Coro::idle = sub {
2217	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3742	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2218	async { Event::one_event };	3743	(async {
		3744	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3745	EV::loop EV::LOOP_ONESHOT;
		3746	})->prio (Coro::PRIO_MAX);
2219	};	3747	};
2220		3748
2221	cfg_load;	3749	evthread_start IO::AIO::poll_fileno;
2222	db_load;	3750
		3751	cf::sync_job {
		3752	cf::incloader::init ();
		3753
		3754	cf::init_anim;
		3755	cf::init_attackmess;
		3756	cf::init_dynamic;
		3757
		3758	cf::load_settings;
		3759
		3760	reload_resources;
		3761	reload_config;
		3762	db_init;
		3763
		3764	cf::init_uuid;
		3765	cf::init_signals;
		3766	cf::init_skills;
		3767
		3768	cf::init_beforeplay;
		3769
		3770	atomic;
		3771
2223	load_extensions;	3772	load_extensions;
2224	Event::loop;	3773
		3774	utime time, time, $RUNTIMEFILE;
		3775
		3776	# no (long-running) fork's whatsoever before this point(!)
		3777	use POSIX ();
		3778	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3779
		3780	cf::_post_init 0;
		3781	};
		3782
		3783	cf::object::thawer::errors_are_fatal 0;
		3784	info "parse errors in files are no longer fatal from this point on.\n";
		3785
		3786	AE::postpone {
		3787	undef &main; # free gobs of memory :)
		3788	};
		3789
		3790	goto &main_loop;
2225	}	3791	}
2226		3792
2227	#############################################################################	3793	#############################################################################
2228	# initialisation and cleanup	3794	# initialisation and cleanup
2229		3795
2230	# install some emergency cleanup handlers	3796	# install some emergency cleanup handlers
2231	BEGIN {	3797	BEGIN {
		3798	our %SIGWATCHER = ();
2232	for my $signal (qw(INT HUP TERM)) {	3799	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	3800	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2234	data => WF_AUTOCANCEL,
2235	signal => $signal,
2236	cb => sub {
2237	cf::cleanup "SIG$signal";	3801	cf::cleanup "SIG$signal";
2238	},
2239	);	3802	};
		3803	}
		3804	}
		3805
		3806	sub write_runtime_sync {
		3807	my $t0 = AE::time;
		3808
		3809	# first touch the runtime file to show we are still running:
		3810	# the fsync below can take a very very long time.
		3811
		3812	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3813
		3814	my $guard = cf::lock_acquire "write_runtime";
		3815
		3816	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3817	or return;
		3818
		3819	my $value = $cf::RUNTIME + 90 + 10;
		3820	# 10 is the runtime save interval, for a monotonic clock
		3821	# 60 allows for the watchdog to kill the server.
		3822
		3823	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3824	and return;
		3825
		3826	# always fsync - this file is important
		3827	aio_fsync $fh
		3828	and return;
		3829
		3830	# touch it again to show we are up-to-date
		3831	aio_utime $fh, undef, undef;
		3832
		3833	close $fh
		3834	or return;
		3835
		3836	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3837	and return;
		3838
		3839	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3840
2240	}	3841	1
		3842	}
		3843
		3844	our $uuid_lock;
		3845	our $uuid_skip;
		3846
		3847	sub write_uuid_sync($) {
		3848	$uuid_skip ||= $_[0];
		3849
		3850	return if $uuid_lock;
		3851	local $uuid_lock = 1;
		3852
		3853	my $uuid = "$LOCALDIR/uuid";
		3854
		3855	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3856	or return;
		3857
		3858	my $value = uuid_seq uuid_cur;
		3859
		3860	unless ($value) {
		3861	info "cowardly refusing to write zero uuid value!\n";
		3862	return;
		3863	}
		3864
		3865	my $value = uuid_str $value + $uuid_skip;
		3866	$uuid_skip = 0;
		3867
		3868	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3869	and return;
		3870
		3871	# always fsync - this file is important
		3872	aio_fsync $fh
		3873	and return;
		3874
		3875	close $fh
		3876	or return;
		3877
		3878	aio_rename "$uuid~", $uuid
		3879	and return;
		3880
		3881	trace "uuid file written ($value).\n";
		3882
		3883	1
		3884
		3885	}
		3886
		3887	sub write_uuid($$) {
		3888	my ($skip, $sync) = @_;
		3889
		3890	$sync ? write_uuid_sync $skip
		3891	: async { write_uuid_sync $skip };
2241	}	3892	}
2242		3893
2243	sub emergency_save() {	3894	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	3895	my $freeze_guard = cf::freeze_mainloop;
2245		3896
2246	warn "enter emergency perl save\n";	3897	info "emergency_perl_save: enter\n";
		3898
		3899	# this is a trade-off: we want to be very quick here, so
		3900	# save all maps without fsync, and later call a global sync
		3901	# (which in turn might be very very slow)
		3902	local $USE_FSYNC = 0;
2247		3903
2248	cf::sync_job {	3904	cf::sync_job {
		3905	cf::write_runtime_sync; # external watchdog should not bark
		3906
2249	# use a peculiar iteration method to avoid tripping on perl	3907	# use a peculiar iteration method to avoid tripping on perl
2250	# refcount bugs in for. also avoids problems with players	3908	# refcount bugs in for. also avoids problems with players
2251	# and maps saved/destroyed asynchronously.	3909	# and maps saved/destroyed asynchronously.
2252	warn "begin emergency player save\n";	3910	info "emergency_perl_save: begin player save\n";
2253	for my $login (keys %cf::PLAYER) {	3911	for my $login (keys %cf::PLAYER) {
2254	my $pl = $cf::PLAYER{$login} or next;	3912	my $pl = $cf::PLAYER{$login} or next;
2255	$pl->valid or next;	3913	$pl->valid or next;
		3914	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2256	$pl->save;	3915	$pl->save;
2257	}	3916	}
2258	warn "end emergency player save\n";	3917	info "emergency_perl_save: end player save\n";
2259		3918
2260	warn "begin emergency map save\n";	3919	cf::write_runtime_sync; # external watchdog should not bark
		3920
		3921	info "emergency_perl_save: begin map save\n";
2261	for my $path (keys %cf::MAP) {	3922	for my $path (keys %cf::MAP) {
2262	my $map = $cf::MAP{$path} or next;	3923	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	3924	$map->valid or next;
2264	$map->save;	3925	$map->save;
2265	}	3926	}
2266	warn "end emergency map save\n";	3927	info "emergency_perl_save: end map save\n";
		3928
		3929	cf::write_runtime_sync; # external watchdog should not bark
		3930
		3931	info "emergency_perl_save: begin database checkpoint\n";
		3932	BDB::db_env_txn_checkpoint $DB_ENV;
		3933	info "emergency_perl_save: end database checkpoint\n";
		3934
		3935	info "emergency_perl_save: begin write uuid\n";
		3936	write_uuid_sync 1;
		3937	info "emergency_perl_save: end write uuid\n";
		3938
		3939	cf::write_runtime_sync; # external watchdog should not bark
		3940
		3941	trace "emergency_perl_save: syncing database to disk";
		3942	BDB::db_env_txn_checkpoint $DB_ENV;
		3943
		3944	info "emergency_perl_save: starting sync\n";
		3945	IO::AIO::aio_sync sub {
		3946	info "emergency_perl_save: finished sync\n";
		3947	};
		3948
		3949	cf::write_runtime_sync; # external watchdog should not bark
		3950
		3951	trace "emergency_perl_save: flushing outstanding aio requests";
		3952	while (IO::AIO::nreqs || BDB::nreqs) {
		3953	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3954	}
		3955
		3956	cf::write_runtime_sync; # external watchdog should not bark
2267	};	3957	};
2268		3958
2269	warn "leave emergency perl save\n";	3959	info "emergency_perl_save: leave\n";
2270	}	3960	}
2271		3961
		3962	sub post_cleanup {
		3963	my ($make_core) = @_;
		3964
		3965	IO::AIO::flush;
		3966
		3967	error Carp::longmess "post_cleanup backtrace"
		3968	if $make_core;
		3969
		3970	my $fh = pidfile;
		3971	unlink $PIDFILE if <$fh> == $$;
		3972	}
		3973
		3974	# a safer delete_package, copied from Symbol
		3975	sub clear_package($) {
		3976	my $pkg = shift;
		3977
		3978	# expand to full symbol table name if needed
		3979	unless ($pkg =~ /^main::.*::$/) {
		3980	$pkg = "main$pkg" if $pkg =~ /^::/;
		3981	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3982	$pkg .= '::' unless $pkg =~ /::$/;
		3983	}
		3984
		3985	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3986	my $stem_symtab = *{$stem}{HASH};
		3987
		3988	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3989	or return;
		3990
		3991	# clear all symbols
		3992	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3993	for my $name (keys %$leaf_symtab) {
		3994	_gv_clear *{"$pkg$name"};
		3995	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3996	}
		3997	}
		3998
2272	sub reload() {	3999	sub do_reload_perl() {
2273	# can/must only be called in main	4000	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	4001	unless (in_main) {
2275	warn "can only reload from main coroutine\n";	4002	error "can only reload from main coroutine";
2276	return;	4003	return;
2277	}	4004	}
2278		4005
2279	warn "reloading...";	4006	return if $RELOAD++;
2280		4007
2281	warn "freezing server";	4008	my $t1 = AE::time;
2282	my $guard = freeze_mainloop;	4009
		4010	while ($RELOAD) {
		4011	cf::get_slot 0.1, -1, "reload_perl";
		4012	info "perl_reload: reloading...";
		4013
		4014	trace "perl_reload: entering sync_job";
		4015
		4016	cf::sync_job {
2283	cf::emergency_save;	4017	#cf::emergency_save;
2284		4018
2285	warn "sync database to disk";	4019	trace "perl_reload: cancelling all extension coros";
2286	cf::db_sync;
2287	IO::AIO::flush;
2288
2289	eval {
2290	# if anything goes wrong in here, we should simply crash as we already saved
2291
2292	warn "cancel all watchers";
2293	for (Event::all_watchers) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;
2295	}
2296
2297	warn "cancel all extension coros";
2298	$_->cancel for values %EXT_CORO;	4020	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();	4021	%EXT_CORO = ();
2300		4022
2301	warn "remove commands";	4023	trace "perl_reload: removing commands";
2302	%COMMAND = ();	4024	%COMMAND = ();
2303		4025
2304	warn "remove ext commands";	4026	trace "perl_reload: removing ext/exti commands";
2305	%EXTCMD = ();	4027	%EXTCMD = ();
		4028	%EXTICMD = ();
2306		4029
2307	warn "unload/nuke all extensions";	4030	trace "perl_reload: unloading/nuking all extensions";
2308	for my $pkg (@EXTS) {	4031	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";	4032	trace "... unloading $pkg";
2310		4033
2311	if (my $cb = $pkg->can ("unload")) {	4034	if (my $cb = $pkg->can ("unload")) {
2312	eval {	4035	eval {
2313	$cb->($pkg);	4036	$cb->($pkg);
2314	1	4037	1
2315	} or warn "$pkg unloaded, but with errors: $@";	4038	} or error "$pkg unloaded, but with errors: $@";
		4039	}
		4040
		4041	trace "... clearing $pkg";
		4042	clear_package $pkg;
2316	}	4043	}
2317		4044
2318	warn "... nuking $pkg";
2319	Symbol::delete_package $pkg;
2320	}
2321
2322	warn "unload all perl modules loaded from $LIBDIR";	4045	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {	4046	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4047	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325		4048
2326	warn "removing <$k>";	4049	trace "... unloading $k";
2327	delete $INC{$k};	4050	delete $INC{$k};
2328		4051
2329	$k =~ s/\.pm$//;	4052	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;	4053	$k =~ s/\//::/g;
2331		4054
2332	if (my $cb = $k->can ("unload_module")) {	4055	if (my $cb = $k->can ("unload_module")) {
2333	$cb->();	4056	$cb->();
		4057	}
		4058
		4059	clear_package $k;
2334	}	4060	}
2335		4061
2336	Symbol::delete_package $k;
2337	}
2338
2339	warn "get rid of safe::, as good as possible";	4062	trace "perl_reload: getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	4063	clear_package "safe::$_"
2341	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342		4065
2343	warn "unload cf.pm \"a bit\"";	4066	trace "perl_reload: unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	4067	delete $INC{"cf.pm"};
		4068	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2345		4069
2346	# don't, removes xs symbols, too,	4070	# don't, removes xs symbols, too,
2347	# and global variables created in xs	4071	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	4072	#clear_package __PACKAGE__;
2349		4073
2350	warn "reloading cf.pm";	4074	info "perl_reload: unload completed, starting to reload now";
		4075
		4076	trace "perl_reload: reloading cf.pm";
2351	require cf;	4077	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4078	cf::_connect_to_perl_1;
2353		4079
2354	warn "load config and database again";	4080	trace "perl_reload: loading config and database again";
2355	cf::cfg_load;	4081	cf::reload_config;
2356	cf::db_load;
2357		4082
2358	warn "load extensions";	4083	trace "perl_reload: loading extensions";
2359	cf::load_extensions;	4084	cf::load_extensions;
2360		4085
		4086	if ($REATTACH_ON_RELOAD) {
2361	warn "reattach attachments to objects/players";	4087	trace "perl_reload: reattaching attachments to objects/players";
2362	_global_reattach;	4088	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	4089	trace "perl_reload: reattaching attachments to maps";
2364	reattach $_ for values %MAP;	4090	reattach $_ for values %MAP;
		4091	trace "perl_reload: reattaching attachments to players";
		4092	reattach $_ for values %PLAYER;
		4093	}
		4094
		4095	cf::_post_init 1;
		4096
		4097	trace "perl_reload: leaving sync_job";
		4098
		4099	1
		4100	} or do {
		4101	error $@;
		4102	cf::cleanup "perl_reload: error, exiting.";
		4103	};
		4104
		4105	--$RELOAD;
		4106	}
		4107
		4108	$t1 = AE::time - $t1;
		4109	info "perl_reload: completed in ${t1}s\n";
		4110	};
		4111
		4112	our $RELOAD_WATCHER; # used only during reload
		4113
		4114	sub reload_perl() {
		4115	# doing reload synchronously and two reloads happen back-to-back,
		4116	# coro crashes during coro_state_free->destroy here.
		4117
		4118	$RELOAD_WATCHER ||= cf::async {
		4119	Coro::AIO::aio_wait cache_extensions;
		4120
		4121	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4122	do_reload_perl;
		4123	undef $RELOAD_WATCHER;
		4124	};
2365	};	4125	};
2366		4126	}
2367	if ($@) {
2368	warn $@;
2369	warn "error while reloading, exiting.";
2370	exit 1;
2371	}
2372
2373	warn "reloaded";
2374	};
2375		4127
2376	register_command "reload" => sub {	4128	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	4129	my ($who, $arg) = @_;
2378		4130
2379	if ($who->flag (FLAG_WIZ)) {	4131	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	4132	$who->message ("reloading server.");
		4133	async {
		4134	$Coro::current->{desc} = "perl_reload";
		4135	reload_perl;
		4136	};
2383	}	4137	}
2384	};	4138	};
2385		4139
2386	unshift @INC, $LIBDIR;	4140	#############################################################################
2387		4141
2388	$TICK_WATCHER = Event->timer (	4142	my $bug_warning = 0;
2389	reentrant => 0,
2390	prio => 0,
2391	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,
2393	cb => sub {
2394	$NOW = Event::time;
2395		4143
2396	cf::server_tick; # one server iteration	4144	sub wait_for_tick() {
2397	$RUNTIME += $TICK;	4145	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2398	$NEXT_TICK += $TICK;
2399		4146
		4147	$WAIT_FOR_TICK->wait;
		4148	}
		4149
		4150	sub wait_for_tick_begin() {
		4151	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4152
		4153	my $signal = new Coro::Signal;
		4154	push @WAIT_FOR_TICK_BEGIN, $signal;
		4155	$signal->wait;
		4156	}
		4157
		4158	sub tick {
		4159	if ($Coro::current != $Coro::main) {
		4160	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4161	unless ++$bug_warning > 10;
		4162	return;
		4163	}
		4164
		4165	cf::one_tick; # one server iteration
		4166
		4167	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4168
		4169	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4170	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4171	Coro::async_pool {
		4172	$Coro::current->{desc} = "runtime saver";
		4173	write_runtime_sync
		4174	or error "ERROR: unable to write runtime file: $!";
		4175	};
		4176	}
		4177
		4178	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4179	$sig->send;
		4180	}
2400	$WAIT_FOR_TICK->broadcast;	4181	$WAIT_FOR_TICK->broadcast;
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2402		4182
2403	# if we are delayed by four ticks or more, skip them all	4183	$LOAD = ($NOW - $TICK_START) / $TICK;
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4184	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2405		4185
2406	$TICK_WATCHER->at ($NEXT_TICK);	4186	if (0) {
2407	$TICK_WATCHER->start;	4187	if ($NEXT_TICK) {
		4188	my $jitter = $TICK_START - $NEXT_TICK;
		4189	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4190	debug "jitter $JITTER\n";#d#
		4191	}
2408	},	4192	}
2409	);	4193	}
2410		4194
		4195	{
		4196	# configure BDB
		4197
		4198	BDB::min_parallel 16;
		4199	BDB::max_poll_reqs $TICK * 0.1;
		4200	#$AnyEvent::BDB::WATCHER->priority (1);
		4201
		4202	unless ($DB_ENV) {
		4203	$DB_ENV = BDB::db_env_create;
		4204	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4205	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4206	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4207	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4208	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4209
		4210	cf::sync_job {
		4211	eval {
		4212	BDB::db_env_open
		4213	$DB_ENV,
		4214	$BDBDIR,
		4215	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4216	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4217	0666;
		4218
		4219	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4220	};
		4221
		4222	cf::cleanup "db_env_open(db): $@" if $@;
		4223	};
		4224	}
		4225
		4226	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4227	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4228	};
		4229	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4230	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4231	};
		4232	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4233	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4234	};
		4235	}
		4236
		4237	{
		4238	# configure IO::AIO
		4239
		4240	IO::AIO::min_parallel 8;
2411	IO::AIO::max_poll_time $TICK * 0.2;	4241	IO::AIO::max_poll_time $TICK * 0.1;
		4242	undef $AnyEvent::AIO::WATCHER;
		4243	}
2412		4244
2413	$AIO_POLL_WATCHER = Event->io (	4245	our $_log_backtrace;
2414	fd => IO::AIO::poll_fileno,	4246	our $_log_backtrace_last;
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420		4247
2421	$WRITE_RUNTIME_WATCHER = Event->timer (	4248	sub _log_backtrace {
2422	data => WF_AUTOCANCEL,	4249	my ($msg, @addr) = @_;
2423	after => 0,	4250
2424	interval => 10,	4251	$msg =~ s/\n$//;
2425	cb => sub {	4252
2426	(Coro::unblock_sub {	4253	if ($_log_backtrace_last eq $msg) {
2427	write_runtime	4254	LOG llevInfo, "[ABT] $msg\n";
2428	or warn "ERROR: unable to write runtime file: $!";	4255	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4256	# limit the # of concurrent backtraces
		4257	} elsif ($_log_backtrace < 2) {
		4258	$_log_backtrace_last = $msg;
		4259	++$_log_backtrace;
		4260	my $perl_bt = Carp::longmess $msg;
		4261	async {
		4262	$Coro::current->{desc} = "abt $msg";
		4263
		4264	my @bt = fork_call {
		4265	@addr = map { sprintf "%x", $_ } @addr;
		4266	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4267	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4268	or die "addr2line: $!";
		4269
		4270	my @funcs;
		4271	my @res = <$fh>;
		4272	chomp for @res;
		4273	while (@res) {
		4274	my ($func, $line) = splice @res, 0, 2, ();
		4275	push @funcs, "[$func] $line";
		4276	}
		4277
		4278	@funcs
		4279	};
		4280
		4281	LOG llevInfo, "[ABT] $perl_bt\n";
		4282	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4283	LOG llevInfo, "[ABT] $_\n" for @bt;
		4284	--$_log_backtrace;
2429	})->();	4285	};
		4286	} else {
		4287	LOG llevInfo, "[ABT] $msg\n";
		4288	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2430	},	4289	}
2431	);	4290	}
		4291
		4292	# load additional modules
		4293	require "cf/$_.pm" for @EXTRA_MODULES;
		4294	cf::_connect_to_perl_2;
2432		4295
2433	END { cf::emergency_save }	4296	END { cf::emergency_save }
2434		4297
2435	1	4298	1
2436		4299

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